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4M

4M Water Rocket Kit, DIY Science Space Stem Toys, For Boys & Girls Ages 8+

  • Based on 8,671 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jul 18
Order within 1 hour and 16 minutes
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Style: Water Rocket Kit


Features

  • Pump not included.
  • Kit contains 1 plastic bottle, 4 fins (One for spare), 1 fin support, 1 bung, 1 bung connector, 1 pump connector, 1 extension plastic pipe and detailed instruction.
  • Recommended for children ages 14+
  • Construct your own rocket
  • See how the rocket flies, Blasts over 30 feet
  • Mechanics kits are innovative, inspiring and full of action
  • Kit includes all required parts and instructions
  • Educational kit that demonstrates a science principle

Description

Blast off into the heavens with the 4M Water Rocket Kit. The 4M Water Rocket Kit uses the power of water pressure to blast its rocket up to 90 feet in the air. The kit contains all the parts required to transform a recycled soda bottle into a functioning water rocket. This kit is ideal for young science enthusiasts, especially those interested in rocketry and space flight. Detailed instructions for use and care are included. Adult supervision recommended. This kit requires the use of a bicycle pump (not included). From the Manufacturer Construct a rocket that blasts over 30 feet with our 4M Water Rocket Kit. Powered by water and air pressure. Pump and instructions are included. Science in action.

Product Dimensions: 8.5 x 11.5 x 4 inches


Item Weight: 8.8 ounces


Country of Origin: Hong Kong


Item model number: 4605


Manufacturer recommended age: 14 - 15 years


Is Discontinued By Manufacturer: No


Release date: September 18, 2018


Manufacturer: Toysmith


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 18

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

    • Fun out of the box, with a lot of potential!
Style: Water Rocket Kit
The rocket is a fun activity for sure. The assembly was very easy and the operation is very simple. I don’t have a hand pump so I used a batter operated one and it works really fast! It would be great for a science project, learning about the pressures, water levels, and bottle sizes. How they correspond to height of the bottle on launch. It’s a good transition into model rockets too. Recommend for sure, but if you are really going to use differing equipment, it might be a good idea to get a longer tube for the air. You can pick them up from any hardware store. Electric pump with digital pressure or preset limit would be best for more precise experiments. ... show more
Reviewed in the United States on June 22, 2025 by Chris B.
    • Simple but high-performing and fun, and not as easy to "just build one yourself" as it first appears
Style: Water Rocket Kit
This is a pretty great kit, especially for the price. It was pretty easy to build, in fact I was able to let my daughters do most of the steps, and we had it together very quickly. The fins are pretty heavy-duty and haven't broken yet, even after many flights and landings; I've been careful to make sure that the fin assembly gets screwed on by the center fitting, though, rather than using the fins themselves as levers - I think that might break them. An extra fin was included. I was disappointed at first that there's no specific release mechanism - you just wedge the plug up into the mouth of the bottle, and pump until it lets go. However, this turns out to be part of the fun of the process, as you never know quite when it will take off; it also lets you change up how high it goes (and how hard it is to pump up) by how hard you jam in the plug. (That is, for my younger daughter, I could put it in relatively gently - or let her put it in - and it would let go at a lower pressure, which was within her ability to pump it up.) It can go quite high, probably 100 feet on a good shot - we have done most of our shooting from the middle of a golf fairway in order to have enough space. Now, if you're handy, you could build this from parts in a hardware store and an hour or two at your workbench - but the fitting on the plug is actually pretty clever in its design (so that the pressure tends to make the hose more secure rather than blowing it off), and the fin assembly is hardy but easy to disassemble and reassemble. All in all it's great fun and a worthwhile buy. ... show more
Reviewed in the United States on November 11, 2015 by APinFL
    • Best toy of the summer and a great way to make friends
Style: Water Rocket Kit
My son wanted a "rocket set" for his 5th birthday, but couldn't really explain what he meant, so research led me to this. I've got a few cautions about it and I'll get to those, but there's plenty of great stuff about this toy. 1) We can consistently launch this rocket about 4 stories high. It makes a great rocket sound and takes off like, well, a rocket. It's a blast, a huge performer. You know how you worry that things won't be as cool in practice as advertized? This is way cooler! Very exciting every time. 2) Scientific method. We've been forming hypothesizes about whether more or less water would make it go higher and then discussing how to measure and what environmental factors (wind) might impact the results. Got the brain working while we're having fun. 3) I can't imagine a toy being better at helping to make new friends. Every time we launch it up at our play ground, all of the kids and some of the parents get involved, ask questions, want to have a turn. We form launch teams, recovery teams, fueling teams, etc. Our boy has met some kids this way who are in his Kindergarten class that starts this week. He'll start school with a few friends in his class because of this toy. Can't really ask for more than that in a toy! Now a few tweaks and warnings: I am a road cyclist. Road bikes have smaller valve stems than regular bikes and things like wheelbarrows and cars. So, I happen to have pumps for both standards, but assumed that this was designed for the standard bike pump valve. The valve that comes with the rocket is too small to get a seal with the standard pump, but we get a better one with my road bike pump (Presta valve). The rocket launches by building up pressure from the pump and the water, so this is pretty important. With the presta pump, some air still leaks out. I have one kid hold the joint when we launch, but we still loose a little air that way. It's working for us, but this could be better implemented. I may work to modify ours at some point. I'm sure even with a standard pump, you could get this to work, but it might take some tweaking. All in all and amazing fun, safe and sneakly educational toy that has brought kids together and formed new friendships...all for $20. Can't beat it. ... show more
Reviewed in the United States on September 3, 2013 by tk_in_sea

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