Feature:1. Made of high quality materials, which is durable and can withstand constant flipping and folding.2. With smooth surface and rounded edges that is comfortable to hold and safe for your children to play.3. Effective avoid nail biting, knuckle cracking, leg shaking and other fidgeting habits with the use of this toy.4. It's a relaxing, noiseless and compact toy, which can practicing and improving finger flexibility.5. Small puzzle toy for all boys, girls, men and women, school students and office crowds.Specification:Item Type: Fingertip Puzzle ToyMaterial: Plastic, steel ballsSize: Approx.8 x 4 x 2cm / 3.1 x 1.6 x 0.8in Package List:1 x Fingertip ToyNote:Not suitable for children under aged 3 years old, children aged 3‑7 years old should have parental guidance.