Original 3D Crystal Puzzle - Deluxe Castle Black The Black Castle Deluxe Crystal Puzzle from BePuzzled is a sleek, translucent, crystalline puzzle with 104 unique interlocking pieces Take puzzling to a whole new dimension with this unique design Enjoyable to work on, challenging to complete, fun to display This 3D puzzle has a difficulty level of 3 and is fun for puzzlers age 12 and up Approximate assembled size = 5-1/2" x 5-1/2" x 7-1/2"