4MMega Hydraulic Arm Robotic Science Kit

My 4-almost-5-year-old has been asking me questions about how excavators and other pieces of heavy machinery move, so I ordered this thinking it offered the ultimate demonstration. It did. Yes, that’s below the recommended age. I had to do the bulk of the assembly, but the moment I connected two syringes and let him operate one of the plungers, a light bulb came on. And then when the claw portion got connected, forget about it. I couldn’t have imagined the educational moments any better.He is also finding it more fun than I expected just using it as a toy. He got the control coordination down pretty quickly, if not the finesse (more on that below), and it has been the favorite toy for the past few days.I can forgive them the unstable base (screw it down to a board if you need to, you can’t expect more without the thing being much larger) and the fact that things start to pop when you’re zealous with the controls. Those things are redeemed by the affordable price, the clever design, and the exceptional educational value.

excelente!!!

In my opinion, it is good to have a few silly things. This little wind-up toy "lunar rover" that will easily stay parked on the typical fridge door is a perfect little stress-alleviation gadget. Wind it up a bit and it will trundle along across (or even up) the face of the fridge. One caution, though; park it with the spring-driven motor completely wound down to the point where it's not trying to turn the wheels anymore. I say this because I left my previous one partly wound up and pointed *up* the face of the fridge, and after several years of being in the same place, one of the plastic gear teeth had bent from the small but constant force on it; that one has to be nudged to get it to move now.

I got this for a friend for Christmas. It's really the only thing on his fridge. If he gets bored waiting for his dinner to cook, he will wind it up and watch it roam around. It's really tiny and cute and sticks to the fridge with no problem. it does have to be watched though because it will roam off the fridge if it gets to close to the edge and plummet to the floor. Lost among the dust bunnies ... just like Opportunity.

Neat lil toy for my 7 year old, it will climb all the way to the top of the fridge. Parents beware they will try to use it on you vehicle 🤣🤣