Feature 1FLEXIBLE FLIP: Infinite puzzle toy is composed of 8 small blocks, which are easy to assemble. The puzzle block toy can be assembled and flipped infinitely. 2STRESS RELIEF: Flip puzzle toy is suitable for people with irritability, anxiety, low concentration, ADHD, ADD and autism, helps to break bad habits such as nail biting. 3WONDERFUL GIFT: Anxiety relief flip puzzle can be perfect present for loved one, friends, colleagues, relatives, etc. on birthdays, Christmas, Thanksgiving, Halloween, New Years, etc. 4PORTABLE DESIGN: Light weight and in small size, easy to store and carry, can be easily put into your bag, suitable for home, office, travel, school, subways, holiday party, etc. 5ALLOY MATERIAL: Stress relief infinite puzzle is made of alloy material, and the surface is sandblasted, firm and sturdy, stable and anti impact, wear resistant and durable.Item Type: Infinite Puzzle ToyMaterial: AlloyProduct Size: Approx. 80 x 40 x 20mm / 3.1 x 1.6 x 0.8in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Infinite Puzzle Toy1 x Screwdriver1 x ManualNotePlease allow slight error due to manual measurement. Thanks for your understanding.