The London Bus 3D Crystal Puzzle is a fun brainteaser that may invoke memories of a favorite trip (or hopes for one to come!) It is a sleek, translucent, crystalline puzzle with 53 unique interlocking pieces. When you've pieced it all together (be ready for a challenge), this double-decker bus will catch everyone's eye. Details: Red London bus 1.25" x 2.25" x 4.5" assembled size 53 pieces Difficulty level 2 For ages 12 and up