Design & Structure Engine-Inspired Front: The front mimics a Laval engine nozzle, with layered concave and convex textures. This not only creates a striking visual depth but also provides extra grip points for precise control. Side Teeth Grip: Large, recessed teeth along the sides give powerful leverage for effortless flicks—small in size, big in performance! Compact & Comfortable: Maximum thickness 22mm, diameter 47mm—perfectly balanced for pocket carry and comfortable hand feel. Planetary Back: The back features a subtly textured, sphere-like design, reminiscent of a planetary surface. Interactive & Fun Features Linked Bearing Structure: Dual R188 bearings with exclusive linkage design allow you to “hear” the action—enhancing both tactile and auditory pleasure. Rotor Bead Slot: The rotor contains an independent horizontal bead slot for crisp, satisfying “pop” sounds during spins. Materials & Build High-Quality Materials: Stainless steel with stone-washed plating, antiqued brass, or white copper with magnetic polishing. Weight Options: 111g / 125g / 125g, giving you the perfect balance for spin stability and tactile feedback. Product Specifications: Brand: 9 HAND & FUSHIDimensions: 47 × 22 mmMaterial: Stainless Steel / Brass / White CopperWeight: 111g / 125g/125g * Measurement parameters are for reference only.