Features: Develop fine motor skills and stimulate thinking ability with this captivating Metal 3D Puzzle. Perfect for children and adults who love brain teasers. Made from durable and smooth Stainless Steel material, this puzzle is easily manipulated and provides a satisfying and stimulating experience. Suitable for children over six years old and adults, this puzzle toy is perfect for anyone looking to improve their problem solving skills and concentration. Whether its a family gathering, party, or teambuilding activity, this Metal 3D Puzzle is a great addition to any occasion. Give the gift of fun and mental stimulation with this anti stress reliever toy. It's a perfect birthday present that will keep kids and adults entertained for hours. Specifications: Product Dimension: As pictures shown Material: Stainless Steel Style Option: 7 optional style as pictures shown,please select your preference Package Includes: 1 Set 3D Metal Rings Brain Teaser Toy note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.