The Gold Treasure Chest 3D Crystal Puzzle looks like it came off an old pirate ship! It is a sleek, translucent, crystalline puzzle with 52 unique interlocking crystalline pieces, including key. When you’ve pieced it together (be ready for a challenge), the key will open and close this colourful, sleek treasure chest. You’ll be proud to display this sleek, unusual puzzle, and can even store tiny items in it. This 3D puzzle has a difficulty level of 2. Approximate assembled size = 3-1/8″ x 2-3/8″ x 2-1/2″ when closed, 4″ when open. Also available in Black.