Magic YOYO N12 Aluminum Alloy Metal Professional Yo-yos Yo Yo + Gloves + 5 Strings + Yoyo Bag Gift for Girls Boys Kids Birthday Toy- Red Made of top-quality 6061 aluminium,Super smooth sand blasting finish surface, never fade and uneasy to get scratches. It can satisfy different players. It is best for intermediate and advanced users Style:String Trick (1A, 3A, 5A), High Speed Professional Unresponsive Yoyo Bearing Size (mm):12.70*6.30*4.72 .This Unresponsive yo-yo with customized wide and large shape makes it easily to perform amazing tricks. For Age:Age 8 up,Yoyos can cultivate the imagination, creativity and rapid reaction ability, Eye-Hand Coordination.