[Unresponsive Yoyo ]Size C 6.35mm x 12.7mm x 4.762mm, Fits for unresponsive ball yoyos, Such as for unresponsive yoyo seriesT5/T8/N5/N6/N9/N11/N12/M001/M002/Y01/K1/V3 /T9... [Responsive Yoyo ]Size C 6.35mm x 12.7mm x 3.175mm, Fits for responsive ball yoyos, Such as for responsive yoyo series K1 / V6 / K7 / D2/ V3/ T9 ... [ Remover Tool ]Length 68mm, outer diameter 6.35mm, easy to remove any size C without harming or damaging your yoyo. [100% Polyester Yoyo String]About 113cm/44.4 inches long, can be adjusted the length by yourself. Yoyo string is made of 100% Polyester, very durable.(colors in random, 't accept the specified color). Colour: as shown Material: + polyester Package Contents: 2 x 10-ball non-response yoyo axes 2 x U- 8-ball non-response yoyo 2 x narrow C response yoyo 1 x removal tool 6 x ball strings (random color, 't accept the specified color) 3 x x 8 ball shafts 3 x x 10 ball shafts Only the above package content, other 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.