Thames & Kosmos Gecko Run Marble Run Deluxe Kit | Toy Model Kit for Creative Marble Runs | STEM Toy for Problem-Solving Skills | Requires Starter Set | Age 8+, White

My son is obsessed with marble runs but they normally take up a lot of room. This is great though as it fastens to a window (or wall). The parts are robust enough for shall we say not the most delicate of handling and has allowed him to create many courses that can stay in situ without cluttering the room. He found it easy to put together, and was a good present at the right price point.

Just right for the granddaughter.

Struggled to find a surface for it to stick to, ended up using a window! The weight of the ball is on the heavier side so tends to pull the track of. Can take a while to position the tracks in place then when you do the "gecko" feet come undone and fall of the wall.

Was not good value for money and very messy and difficult to assemble. Bits are missing but it’s been a while as we bought for Christmas and only start playing

Such a clever idea but it just does not work. The kids love the idea of it and keep trying to play with it but they just get frustrated as it does not stick properly. We have tried it on glass, fridge, gloss surfaces etc and the pieces just fall off after 30 seconds or so , which is very annoying when you are trying to build a run of any length. I thought at the price that it would have been better tested.

Brilliant and lots of fun

My kids were very excited to get this for Christmas but they do not stick very well to any surface. I have tried a white board, walls, windows, etc. The track is constantly coming apart and falling down. My kids did enjoy it while it lasted but it did not last long.

It's a fantastic concept and absolutely amazing plastic parts. Unfortunately the sticky pads fall short on the sticky part. They only seem to stick to glass and absolutely flat metal or like a white board. If you plan on building a run on your bedroom wall or down the hallway you'll need to order different sticky pads. I recommend double sided sticky pads on Amazon. I used double sided tape to build my run. I got this for my nephews for Christmas and wanted to make sure the sticky pads would work. Glad I tried it before they did.

This was a very cool toy for kids but you do need a smooth surface to adhere it to. I would recommend a sanded smooth wall-even an eggshell paint would not hold the adhesive. Other that that it works as shown-very customizable and a lot of fun!