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 Toy Material: Metal Size: Approx. 4 x 4 x 4cm / 1.6 x 1.6 x 1.6in (After Assemble). Package List: 1 x Fingertip Slider Toy1 x Storage Bag