13-in-1 Solar Robot Toys for Ages 8 9 10 11 12 Year Old Boys Girls, STEM Science Kits for Kids Age 8-12, Building Experiments Robotics Kit STEM Projects for Kid Christmas Birthday Gifts (Gray)

While it's hard to assemble (too many pieces for the lower end of the recommended age range) it's well organized and a great gift for my grandson. There's no charge in the solar cell when you open it. But my son had a great time helping to assemble it.

This was a birthday present for my great grandson. He love it. I didn’t see it as I don’t live close. Made 1 of may things a played with it through the house.

I found this enjoyable to build for my son. Instructions are not very clear. Product is smaller than I expected. It also required unexpected clipping and sanding some plastic parts cut out of a mold which was a bother.

My grandchildren loved these

Difficult

I never even finished assembling this. I might give it away or donate it.But IF you're into electronics and are good at assembling things with small parts, this might be perfect for you.

This was a Christmas gift for my then 11-year-old grandson this was from last Christmas he was very excited to get it and work through it he has several that he's gotten the past two Christmases all from the same shop here on Amazon that sell complete kits no pieces missing always very reliable easy to put together for some people

The media could not be loaded. It does not work built the robot with both my boys they were so excited did the testing to make sure motor worked which it did with no load, soon as you put a load on it(connect all the axels and gears) the motor will not move anything it just hums trying to do something but it can't my boys were very upset I put a 30,000 lm flashlight on it....all it did was hum burn up the motor do not waste your money avoid the heartache for your little ones find something else of better quality