LED Flashing and Music 3D Crystal Puzzle Jigsaw Model/ DIY Castle for Iq Education 105pcs Appreciate the fun of creating from nothing to done.This is the most fascinating places of this puzzle. These beautiful flashing and music swan crystal shaped 3D puzzles are easy to solve with instruction sheet. Challenging without the instruction. Made of high quality crystal plastic.Safe,non-toxic,and environmentally friendly. It is a cool gift to give friends and relatives, but also exquisite home furnishing boutique. Warning: Contains small parts. Not suitable for children under age of 3. Develop your problem solving skills with this puzzle.Stimulates childrens brain development (Logic skills and sensory perceptions).Completed Model Size: 5.5x 5.5 x 7.87inch.