[CREATIVE & BRAIN DEVELOPMENT]- Metal brain teaser condenses with traditional Chinese culture and they are quite interesting to creative thinking and improve both your IQ and EQ. It looks really nice. [GREAT MATERIAL]- It made by high quality metal and you can keep the shape from bending and breaking. This metal IQ puzzle set doesn’t have sharp edges to keep you and your children safe. [PUZZLE GAME]- Puzzles can effectively inspire people’s thinking, train their thinking, judgment and patience. Because it can relax the participants, this brain teaser is also regarded as a classic casual game. [PERFECT GIFT]- This Brain Teasers Metal Puzzle makes an ideal gift, good choices for classmates, friends, family, couples, Christmas, Thanksgiving, Valentine’s Day, anniversary gifts or other good days. You can enjoy Recreational Time with Family & Friends, make your feelings more intimate. [100% SATISFIED AFTER-SALES]- Providing high quality products to our customers is always our commitment.