Super Fun & Skill Building! The original Spinchaku finger spinner is designed for nonstop fun while helping you create an infinite amount of dazzling moves Enhances Fine-Motor Skills – Playing with Spinchaku strengthens hand-eye coordination, dexterity, and concentration, making it both exciting and skill-building. Quick Start Guide Included – Inspired by martial arts, Spinchaku comes with tips to help you master awesome basic tricks like “The Monkey Drum” and create your own custom moves. Durable & Responsive Build – Lightweight yet sturdy, Spinchaku features a rubber ball tip that provides satisfying bounce and smooth performance on hard surfaces. Customizable Challenge Levels – Each Spinchaku comes with interchangeable links and extra links to adjust difficulty, refine techniques, and unlock new trick possibilities. Can you master the spin? It takes fast fingers and steady focus to spin a Spinchaku! Master fast moves and create your own unique ninja combinations with the ultimate finger spinner inspired by martial arts. The Spinchaku Jade Viper is the ultimate skill-building finger spinner, combining high-speed fun with precision control. Designed to enhance hand-eye coordination, dexterity, and reflexes, this dynamic fidget toy is easy to use yet endlessly challenging. Spinchaku’s built-in spinning ring allows for smooth, controlled motion, making tricks and combos easier to learn. Featuring an innovative and durable design, it includes a rubber ball tip that delivers a satisfying bounce and responsiveness on hard surfaces. Customize your Spinchaku with interchangeable links and two extra links to increase difficulty and unlock new moves. Lightweight and built for all skill levels, Spinchaku is designed to push your skills to the next level without needing upgrades or accessories. Whether you're perfecting your technique or showing off awesome moves, the Jade Viper delivers nonstop action.