Drop Out Color:White The puzzle is based on

The puzzle is based on the principle of a more difficult 3D maze

The CORE is an Escape Room style Sequential Discovery Puzzle Box

"Xi" 2D packing puzzle with restricted opening designed by Haym Hirsh and produced by NothingYetDesigns

"Amulet" 3D maze puzzle designed by James Stanley and produced by Rademic

A bit about 9 Layer from Craig:

Drop Out Color:White The puzzle is based on"Drop Out" is a sliding puzzle designed by Stewart Coffin and produced by NothingYet Designs. Goal: Place the Wenge disc in the starting hole. Slide the pieces inside to allow it to drop out of the other side hole. Now do it again from the start! Made of laser cut acrylic and various woods. *Due to the natural colors and grains, actual woods may vary from the pictures. Approx size: 2"x1" *Contains small pieces and is not intended for anyone under