Review on 🧩 ROKR Wooden Marble Puzzles: Mind-Testing Fun for Adults by Tom Childress

This is a well designed product with a few drawbacks. We need to make some adjustments. Although it says you don't need glue, you do need glue. Assemble it first without glue, then you will know where you need glue. The biggest problem I had was assembling part 13 properly and after installing it I had to pry open one end to get it to work properly. You must follow the instructions carefully. I caught myself disassembling a few parts because I put them together incorrectly. There's one more point I had to add because at one point the steel balls didn't fall on the track. You won't be able to assemble it quickly. The fun part is doing it. Don't let the video fool you. No light. I would not recommend this for young children as proper assembly requires patience and concentration. The good news is that it's not like the old balsa planes where you have to use a knife and the parts break. Parts come out easily without a knife if you're careful. Yes, it's a bit pricey, but overall it's good quality. FYI, all parts of A are on one leaf of the tree and all parts of B are on another, and so on.