Yomega Power Brain XP yoyo - Includes Synchronized Clutch and a Smart Switch which enables Players to Choose Between auto-Return and Manual Styles of Play. + Extra 2 Strings (Yellow) Smart Switch: enables the player to choose between automatic return and manual function with the flick of a switch Great Beginner and Intermediate Yoyo: Perfect for beginners, kids, collectors, or anyone looking to purchase a great stress reliever. String Tricks: Every kid, or kid at heart, can Walk the Dog and feel the satisfaction that comes with mastering all the classic tricks. Product Specs: Weight: 69g; Starburst Return System; Width: 35.9mm; Diameter: 60.3mm; Gap Width: 2.5mm Product Warranty and Customer service - We provide a free 3 months Warranty! to activate your warranty follow instructions inside your yoyo package or feel free to contact us.