Original 3D Crystal Puzzle - Heart Red The Red Heart 3D Crystal Puzzle from BePuzzled is a sleek, translucent, crystalline puzzle with 45 unique interlocking pieces Take puzzling to a whole new dimension with this symbolic 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" x 1-1/4" x 2-1/2"