DUAL FUNCTION YOYO: X2 Yoyo New Dual Purpose Version. It's metal yoyo with a responsive bearing which is great for entry-level players. Attached is an extra unresponsive bearing for replacing an unresponsive yoyo from a responsive yoyo. Fits different levels from a beginner to an advanced yoyo player! Professional Treatment: The two-color design of the aluminum yoyo, the advanced anodized coloring treatment of the sphere, the secondary oxidation technology, the coloring process, and the color never fade. This trick yoyo is the best gift for kids, family, and friends. Metal Yoyo: The aluminum yoyo is made of 6061 aviation-grade metal material, which is strong, to falling, and not easily damaged. The butterfly yoyo with high-grade precision stainless steel bearings. No rust, high-temperature resistance, and long service life are conducive to trick yoyo's long-lasting practice. (1A, 3A, 5A) Strong Balance Ability: The yoyo ball arm forms a V-shaped inclination to reduce friction, and the two spheres are consistent. It is suitable for the cumbersome yoyo'-up skills, making the yo-yo idling for a longer time. and the high-speed rotation not shake Playing Professional Metal Yoyo can exercise physical coordination and is very interesting. material: metal Color: as shown B Style: Blue green + Package Contents: 2X Yoyo Ball 1X Stainless Steel Bearing Removal Tool 12X Polyester Yoyo Strings 2X bearing 2X screws 1X wrench 1Pair Gloves 1X portable bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.