Features: Tri-spinner hand spinner for work, class, home. Great hand toy, it helps ADD & ADHD sufferers to relieve stress. Perfect size suitable for adults and kids Hold spinner in one hand and use the other hand to spin it rapidly, using small continuous strikes to keep it rotating indefinitely with practice. Spinners can be spun by one hand only, with one finger to stop and start rotating. Non-toxic and no smell, durable, long life with sound speaker Specifications: Size: 74x74x14mm Material: ABS Shell Color: White, Blue, green, pink Light color: colorful Package includes: 1 x Flashing Sound Tri-spinner Hand spinner