Model Number: YLA-ST42 Brand Name: YLA Key Specifications/Special Features: LED lightsstyle copper spinnergreat toy for fidgeters, anxiety, focusing, ADD & ADHD, autism, quitting bad habits, staying awake. It will glow in the night.Ideal for people trying to quite nail biting, smoking, leg shaking and all type of attention disorder issues. Ergonomic curved shape design for hand comfort and long term usage.High speed hybrid ceramic ball in the center to ensure the smoothest rotation and consistency. 3 steel 608 counterweight bearing weights to increase centripetal force and spin time.Easy to carry, small, simple, discrete and fun, also effective for focus and deep thought.Easy to use: hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice, spinners can be spun using one hand only using the fingers of one hand to stop and start spinning. These are perfect pocket pieces for people wanting something small, simple, discrete and fun-also effective for focus, stress relief and deep thought.