Thames & Kosmos Ultra Bionic Blaster, Kids Science Kit, Learning Resources for Pneumatics, STEM Toys for Science Experiments, Age 10+ with Help & Age 12+ Alone

Not recommended. Made of flimsy ill-fitting plastic and extremely difficult to build unless maybe you hold an MSc in Mechanical Engineering. My 8 year old grad son and I have given up trying.

Everything is assembled correctly, however, the pump doesn't release back and binds to create too much pressure on the gears on the handle assembly. Whoever designed this should have spent a lot more time in quality control. If I could give it 0 stars I would probably do that. We've spent hours and hours on this trying to adjust different aspects of the handle and release mechanism to no avail. Unfortunately this was purchased as a gift by someone else so we can't get their money back. Maybe if a completely new blaster was built from scratch it might work, but the kit we received has too many imperfections for it to work properly.

Spent 3 hours putting it together, checking moving parts as we went only to get to the end to have it shot 1 dart once and now won’t work… waste of $$

Nephew loved receiving this for his b-day!

Item comes packed nicely with original box. no damage to the box. Did not open and check as it's an early purchase gift for Christmas .

it took time to make the assembly, i did all steps one by one properly, and at the end, nothing. Parts are difficult to get out of their rack, and it never worked. i was pressing to get the ball to going out fast, nothing, nothing. not a little bit, nothing. My boy was very disappointed. Don't buy this, you will loose your money.

No funciona