Features:Super cool hand spinner toy with led lights.Knock the spinner on hands or table to light it up, that to get a great colorful lighting effect, the LED lights growing in the dark also would perfect.Premium quality, very durable, easy to carry.Perfect size with fashionable shape, suitable for Adults and kidsHigh Performance Bearing for Extremely Fast and Long Spin Timeshelp reduce stress, anxiety and symptoms associated with ADD/ADHD, Autism, nail biting, hair twirling and leg bouncing. And also help to increase focus and attention. Use This Way: Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spin indefinitely with practice, spinners can be spun using one hand only using the fingers of one hand to stop and start to spin. Specifications:Material: Zinc alloySize: 74 x 37 x 15mmShell Color: black, blueLED color: colorfulShape: BatPackage included:1 x Zinc Alloy Fingertip Toy Tri-Spinner Hand Spinner 1 x Case