Features: brand new and high quality Allowing children to master the yo-yo playing skills from an early age will help them cultivate the habit of thinking independently and using their brains. Parents for play with their children, interact closely with their children, and cultivate feelings. Selected high-quality alloy materials, wear-resistant and fall-resistant, can be used in yo-yo competitions, good gloss. Suitable for the best beginners and advanced players of all ages, the yo-yo uses NSK high-speed ball bearings, which can complete a variety of difficult movements, and can boldly for play your level. The gameplay is diverse and fun. Yo-Yo toys can exercise children’s spatial thinking ability and hands-on ability, exercise hand-eye coordination, improve children’s concentration, and stimulate creativity and imagination. Specifications: Material:Alloy Size: Approx. 5.5x4 for cm/2.17x1.57 in Random Color:Red/Blue/Yellow/Green Package Includes: 1 Piece Alloy Yo-Yos note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.