Calvin's Puzzle

Lee Mod - Square-2 Shift Cube Illusion

Lee Mod - Square-2 Shift Cube

Lee Mod - Square-2 Barrel

Lee Mod - Square-2 Barrel Illusion

Calvin's Puzzle - Full Function Crazy Tetrahedron (Center-Locking)

Calvin's Puzzle - Full Function Crazy 3x3x3 (Center-Locking)

Calvin's Puzzle Art Collection - Chinese Opera FACE-OFF Cube (Molten Lava)

Calvin's Puzzle Art Collection - Chinese Opera FACE-OFF Cube (Graffiti Camo)