Spinzer Ninja Star Fidget Spinner is 3D printed to exacting specifications and ergonomically designed for both form and function. This spinner is leagues above the rest in style and quality. Each bearing is treated with our signature non toxic cleaning solution to remove debris and improve spin up to 3 X more than non treated bearings. Coming with both carbon steel and hybrid ceramic bearing options this personalizable spinner is great as a gifts or just for yourself. Use Spinzer Ninja Star EDC Spinner in class or in a meeting either way its low visual distraction qualities will make it so your fidgeting doesn't bother peers and coworkers in your environment. Spinzer Ninja Star Fidget Spinner is just over 3 Inches in length with 4 8mm steel ball bearings for added weight and spin time.