MAGICYOYO Silencer M001-B Yo-yo Ball Aluminum6061 Unresponsive Yo-yo with Stainless Center Bearing and Stainless Axle (M001B Black) Yoyo body and it's Weight rings are all made of Alloy 6061, and you'll shocked with the stability and its' ultra-smooth performance Comes with STAINLESS center bearing, will NEVER RUST Beautiful Butterfly body shape with Silver Rims, Steel axle for smooth spinning Wide and big yoyo, Optimized to find the best balance, long spin times, stability and ease of catching on the string For intermediate and advanced yoyoers, it's also a good present for your kids& friends. Designed to train fine motor skills and eye-hand coordination Alloy Unresponsiveyoyo,polishing rim on body,bigger than usual It is not only for daily entertainment, but also for acrobaticperformance with most entertaining fancy It can cultivate the imagination, creativity and rapid reactionability A perfect toy for kids, friends, families, etc Adopt CNC lathe to precision processing, the increased density delivers greater momentum and increased challenge.