Feature:1. Piano Key Slider Toy: Consists of a metal body and 8 metal buttons. The design is inspired by the piano keys and simulates the fun of playing the piano. Smooth surface, comfortable to touch.2. Fun To Play: Press the button up and down at will, the upper and lower metals will generate suction, providing force feedback to your hand, and this process will produce a very crisp metal crash sound.3. Stress Relief: Piano key slider clicker toy is suitable for people with irritability, anxiety, low concentration, ADHD and autism, helps to break bad habits such as nail biting.4. Multiple Applicable Scenarios: Piano key stress relief toy is a perfect present for loved one, friends, sisters, colleagues, etc. Compact and lightweight, suitable for office, travel, school, subways, etc.5. Zinc Alloy Material: ADHD piano key slider toy is made of zinc alloy, firm and sturdy, impact resistant and stable, no deformation, wear resistant and durable.Specification:Item Type: Slider Stress Relief ToyMaterial: Zinc AlloyProduct Size: Approx. 72 x 22mm / 2.8 x 0.9in.Package List:1 x Stress Relief Toy1 x Storage BagNote:Please allow slight error due to manual measurement. Thanks for your understanding.