The Black Skull 3D Crystal Puzzle from BePuzzled is a sleek, translucent, crystalline puzzle with 48 unique interlocking pieces. Take puzzling to a whole new dimension with this edgy and trendy design. Enjoyable to work on, challenging to complete and beautiful to display. This 3D puzzle has a difficulty level of 2 and is fun for puzzlers age 12 and up. Approximate assembled size = 3-1/4" x 2" x 3"