" Gears Linkage Design.High Quality Metal Body (Brass Gears + Aluminum Alloy Frame) And Premium Bearing For The Ultimate Fidget Spinner.^ Easy To Carry, Small, Simple, Discrete And Fun, Also Effective For Focus And Deep Thought. Mechanical Fidget Spinner. It Spins Incredibly Well, Considering The Inertia From All The Gearing.^ How To Use: Hold Spinner With One Hand And Spin/Stop With Other. Increases Focus And Attention For Children And Adults With Adhd, Add Ocd, And Autism.^ Great Toy For Fidgeters. Perfect For Waiting In Lines, Meditation, Timing, Quitting Bad Habits, Striking Up Conversations, And More.^ It'S Impressively Smooth, Sturdy, Well-Made And Captivating. It Will Come In A Zippered Case To Protect. Very Solid And Well Machined. Fun To Disassemble And Spins Forever!^"