Black Gear Fidget Spinner, Colorful Glow in The Dark, High Speed and Silence, Cool Metal Mechanical Gear Shape Design with Skull Symbol, Anti-Anxiety and Stress Release for Kids and Adults

The YIJO Fidget Spinners are a metal fidget toy for adults with a mechanical gear shape design and skull symbol. The fidget spinners use a high-quality R188 model ball bearing that runs smoothly and silently for up to 160 seconds. The toy can glow in the dark after exposure to strong light, and the glowing effect can be enhanced with the included UV light. The bearing is replaceable with a same size R188 model ball bearing for DIY purposes. The product reviews are mixed, with positive comments noting the lightweight, durability, and smooth spin, while negative comments relate to the bearing becoming loose or the product falling apart after a short period of use.