Shark 3D Crystal Puzzle by University Games is an exciting design, inspired by nature. It is a sleek, translucent, crystalline puzzle with 37 pieces, plus wave stand and tightening key. When you’ve pieced it together (be ready for a challenge), our shark appears to be breaking through the surface and ready for an attack! This 3D puzzle has a difficulty level of 1. Approximate assembled size = 5″ x 2-1/2″ x 2-7/8″. Delight your mind and eyes with our Shark 3D Crystal Puzzle by University Games. These three-dimensional brainteaser puzzles are enjoyable to work on, challenging to complete, and beautiful to display. They take puzzling to a whole new dimension and are recommended for puzzlers age 12 and up.