Responsive Yoyo K1 . when you Pull it up, K1-Plus come with regular fating Heavier than , and have more without weighting ringsmade by ABS, Style String Trick (1A, 3A, 5A). A perfect toy , , families, etc. Recommended Daily Practicing or Competition.If There is A String Stuck: 1.Remove 2.Take a look at whether the ball is loose and the two hemispheres must be tightened 3. Attach properly.(The most important thing)size:The sphere has a diameter of 51mm and the ball has a width of 10mm.Material:ABScolour:Transparent + bluePackage Contents:1 * ball1 * gloves1 * storage bag3 * ropes(Random color, 't accept the specified color)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.