Feature:1. Increase Friction: Fingertip slider toy adopted triangular shaped, with spiral textures carved on both sides of the front and back, greatly increases the friction.2. Clear Sound: When you push this finger slider, the bottom metal body and the middle metal body create a force that attracts each other to produce a very clear metal impact sound.3. Usage: Metal slider toy helps with anxiety and ADHD, which is a great toy for Fidgeters, Anxiety, Focusing, ADD and ADHD, OCD, Autism, get rid of boredom during the daily life.4. Remove Boring: Fingertip slider toy makes your boring time pass quickly, you will be happy when you are alone and can help you to concentrate on studying, working or brainstorming.5. Portable Size : Decompression slider toy are portable and small enough to play with one hand, allowing you can play anywhere in the office, home, school, station, outdoors, etc.Specification:Item Type: Fingertip Slider ToyMaterial: Metal Size: Approx. 4 x 4 x 4cm or 1.6 x 1.6 x 1.6in (After Assemble).Package List:1 xFingertip Slider Toy1 x Storage Bag