Solar 3D Wooden Puzzle Marble Run DIY Model Kit Craft Sets Wood Mechanical Toys Experiments Projects Birthday Gift for Adult Men Age 14+ Years Old

Bought this to build with my grandson. It went together easily and worked as designed. Very clear instructions.

Fun and easy to put together kit. Gifted to our 16 year old grandson and he has really enjoyed it. For some reason the box this comes in says it is for ages 6 years and up. No! That is kinda misleading because it is not safe for or made to be assembled by anyone under the age of 12 in my honest opinion. Really cool 3D wooden puzzle/model kit!

This is a really fun machine IF you can manage your way to assemble it. There are only a few written instructions, the majority are just pictures, many of them inaccurate. The parts diagram showed circles as ovals and had mislabeled parts. We had to guess at how it went together, had to take it apart once, but managed to build the thing. We chose to use the battery option and it really is fun to watch. I built this with my 9 year old grand daughter and 5 year old grand son. They were so proud of themselves for building such a neat machine! It says no glue needed, but if I had it to do again, I would glue everything except the gears, which need to turn. It's quite fragile in the unglued state. It was A HUGE and frustrating challenge to build, but very enjoyable once it was done.

Bought as a gift for a 10 year old birthday. We put it together with no problems. Had a great time and the end result was excellent. He's very proud of it. Instructions are slightly better than, and similar to, Ikea furniture but are excellent for learning (matching positioning of product vs instructions, finding subtle differences in pieces, attention to detail, critical thinking for when something doesn't seem quite right, not taking any 'short cuts' to speed up the process). Would buy again and again, and we will be buying more marble runs.

Purchased for a friend who is a parent of an autistic child. Her child loved it. This was easy to assemble and the results were therapeutical.

Easy to take parts apart.Clear instructions.Easy to put together.Fun to watch.Battery works great.Solar power will not work.Glue was messy.

Son had a lot of fun building this. You'll need an adult with strong fingers to push some of the pieces together. And careful not to break them as you do.

Awesome gift. The kid loved it and assembled it almost completely on her own (10yr old). Works well with the battery and also works with solar panel IN STRONG,DIRECT SUNLIGHT ONLY. Our newer window blocked too much sunlight. In an older window the solar panel works fine…a bit more sluggish than with batteries. But it did work!!!!The seller was incredibly responsive sending a replacement part IN ONLY THREE DAYS!!!!! Amazing customer support. Wow.