45 piece Original 3D Crystal Puzzle - Blue The 3D Crystal Puzzles features 45 uniquely-shaped, interlocking, translucent crystalline pieces that give puzzling a whole new dimension These challenging puzzles are perfect for collectors! Set includes 45 puzzle pieces and key, recommended for ages 12 and up The Crystal Gift Box 3D Puzzle is both beautiful and challenging for the astute puzzler Product Dimensions: 5.12" x 3.15"