This Hedgehog 3D Crystal Puzzle is the one of the cutest animals you can construct to add to your collection, and this popular critter is now available in blue! It is a sleek, translucent, crystalline puzzle with 55 unique interlocking pieces. Grab one today and craft these colorful blue hued quills against a crystal-clear underbelly to create a new adorable crystal creature to add to your 3D puzzle collection.