Responsive Yoyo K1. When you pull it up, K1-Plus comes with a regular friction bearing. Heavier than before, providing more fun without weighting rings. Made from ABS material, suitable for string tricks (1A, 3A, 5A). A perfect toy for kids, friends, and families. Recommended for kids' daily practice or competition. If the string gets stuck: 1. Remove the string. 2. Check if the ball is loose; ensure both hemispheres are tightly secured. 3. Reattach properly. (This is the most important step.) Size: The sphere has a diameter of 51mm and a width of 10mm. Material: ABS Color: Blue Package Contents: 1 x Yoyo 1 x Pair of gloves 1 x Storage bag 3 x Ropes (random color, no color choice available) Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1-3cm. Only the items listed above are included; other products are not included.