XCSOURCE Blue Magic YOYO Ball Alloy Aluminum Toy Yo Yo Bearing Reel Gift + String TH113 Made of aluminium alloy that allows for stable and balanced high speed routines. "U" type bow shape with red color makes yoyo stylish and attractive. Durable recovery system and long idling time. It can cultivate the imagination, creativity, coordination, flexibility, and rapid reaction ability. A perfect toy for kids, friends, families, etc, it is great gift for someone special!