The T-Rex Deluxe 3D Crystal Puzzle from BePuzzled features a fierce, fearless design. It is a sleek, translucent, crystalline puzzle with 49 unique interlocking pieces. When you've joined the interlocking plastic pieces together (be ready for a challenge), its glossy, sleek design will impress all who see it. This 3D puzzle has a difficulty level of 3. Assembled puzzle measures approximately 5.5 x 4 x 5 inches.