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Thames & Kosmos

Thames & Kosmos Hydraulic Boxing Bots | Robotics & Engineering Set

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Nov 11 – Nov 28
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Features

  • Build two boxing robots that are powered by hydraulics!
  • Learn about the physics, design, and components of hydraulic (water-powered) mechanisms, including gears, cylinders, and pistons.
  • The upper and lower body move independently to simulate real-life movements, allowing these boxing bots to dodge, jab, and punch with accuracy.
  • Kit includes the parts to build two boxing bots plus a scoreboard so that you can challenge a friend to a hydraulic robot battle.
  • Introduces important physics and engineering lessons through a fun, hands-on building project with a big punch!

Description

In this corner, hailing from the rough-and-tumble robotics lab: It’s Robo- Boxer! And in that corner, the wonder from Down Under: Put your mitts together for Kangaroo-Bot! Ding! Ding! Jab, dodge, uppercut! These boxing robots use hydraulic power to move like real boxers. Packed with the excitement of a boxing match and the fun of constructing incredible mechanical models, this kit allows you to build two boxing robots and challenge a friend to a match. With complex shoulder gestures, two boxing punches (jab and uppercut), three waist postures, and interchangeable heads, these robots are designed to float like butterflies and sting like bees. Use the handheld hydraulic controls to fight like a champ. Knock your opponent robot’s head backward and score a point on the included scoreboard. Learn about how these amazing machines and hydraulic systems work. Leave the rocking and socking to the lightweights — this awesome STEM kit really packs a punch!

Brand Name: Thames & Kosmos


Age Range Description: Youth


Educational Objective: STEM


Set Name: Robo-Boxer, Kangaroo-Bot


Number of Packs: 2


Number of Items: 1


Unit Count: 2 Count


Item Highlight: Explore Gears, Cylinders & Pistons | Build Working Robots & Spar With Friends | STEM Science Learning & Education | Ages 10+


UPC: 814743018280


Global Trade Identification Number: 80,


Included Components: Plastic building pieces, hydraulic cylinders and tubes, manual


Item Type Name: Robotics STEM Kit


Model Number: 620505


Manufacturer: Thames & Kosmos


Manufacturer Part Number: 620505


Manufacturer recommended age: 8 years and up


Theme: Robot,Robots


Battery Description: No Battery required


Material Type: Plastic


Size: 14.8 x 3 x 11.3 inches


Item Dimensions: 14.8 x 3 x 11.3 inches


Item Weight: 1.8 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 11 – Nov 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Must have for young builders too! Unbelievable value.
I purchased this kit for my 6yo son and I to work on, we have never done a modeling kit like this before and our prior experience is with legos. My son loves to build and he loves robots so I thought this kit would be a good transition to something other than legos. I knew going in it was going to take a long time and I set that expectation upfront. We would spend 30minutes to an hour once a week on it until we finished. I realized quickly I would have to do the cutting if I wanted the pieces to have clean cuts, I used an old pair of cuticle cutters that did just that, no sanding required (that’s what I had and worked for us) and my son did the building. He completed 80-90% of the build on his own and I provided guidance the other 10-20% and as recommended in the instructions, we recruited his 9yo sister to build the 2nd robot so we could finish faster. After the 1st building session my son asked everyday if we could work on the robot, he loved this project so much he couldn’t wait for me so he started to build and cut pieces on his own until he got stuck and he would ask for help. We love the side to side hip action, ability to change from upper cuts to jabs, interchangeable masks, kangaroo and robot. My son did ask if I could purchase additional masks for more variety of boxers, so maybe this could be considered as a future product add on. This kit is absolutely amazing and an astounding value at $35, we definitely recommend it to kids that love to build, the quality of the pieces, the experiment for hydraulic vs pneumatic power, and at the end of it all you have two water powered boxing robots that you built!! So cool!! This is the best toy I have bought in a while. I will look into purchasing more items like this, it is so much more than a toy. Thank you Thames and Kosmos. ... show more
Reviewed in the United States on October 12, 2024 by nsp
    • Fun to build
Grandson loved it
Reviewed in the United States on September 3, 2026 by Amazon Customer
    • Easy assembly
Bought this as a gift. The person I bought it for loves to put things together. Assembly was pretty easy.
Reviewed in the United States on July 22, 2026 by Jean
    • Takes a lot of time to build.
Takes a lot of time to build, but fun to make and they actually work!
Reviewed in the United States on November 20, 2024 by Barbara Jean Stapleton
    • love it
My 10 year old son loved building and playing with it so much!
Reviewed in the United States on August 23, 2026 by Jason
    • Grandson loved it
Purchased this for my 8 year old grandson who is great at building Legos . After purchasing this, I realized that it was probably too advanced for him, but with the help of his father, was able to build about 80% off this by himself. A lot of the work had to do with separating the little pieces before assembling. Once completed though, he loved operating the boxing robots with his brother. It is surprisingly sturdy. ... show more
Reviewed in the United States on January 3, 2026 by Shopaholic
    • Quality time with a lesson hidden in the fun
I build kits like these with my son, started around age 4, he's 10 now. This has been one of the most fun to build and also play with. Sadly, alot of kits are junk, they fall apart as quick as you built them, I do not have the budget for high end kits that often. The build quality of this is excellent, it holds together, no leaks. The instructions say 3 hours each, we each did one, I think it was around 1.5 hours or so, not racing, just enjoying the time. Do make sure you get a good little set of snips to clean the plastic tabs up, it will fit together much better. After we did this, he came out to the shop and was looking at the backhoe, I asked "does that make more sense now?" He smiled and said "yeah, I can see how it works since we built the fighter kit" Awesome "light bulb" moment! ... show more
Reviewed in the United States on March 20, 2025 by josh
    • HOURS OF FUN
This great to learn about hydraulics and I consider it better than other items you have to assemble like legos, etc. because of the educational value. It is fully functional and provides hours of entertainment and although it was purchased for my grandson, I also am enjoying playing with it with my grandson. The instructions are very clear and the parts are well built, especially for the 'roughness' of a 10 year old assembling it. There is lots of value to this item and it is much more than a mere toy! ... show more
Reviewed in the United States on December 11, 2025 by Doc

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