3D Crystal Puzzles are vertical jigsaw puzzles containing unique and precision interlocking translucent plastic pieces. Challenging but Fun to Complete, Beautiful to Display, and a Collectible Keepsake. A fusion of puzzles and brain teasers, promising a uniquely engaging experience for puzzle and brain teaser enthusiasts and novices alike. This charming keepsake is poised to showcase your puzzle-solving skills, leaving friends and family thoroughly impressed This innovative puzzle is designed for ages 12 and up. with step-by-step puzzle solutions available online for extra help.