The Master is one of the finest Diabolos on the market. Designed by and for diabolo players. It features full sized cups made for an ultra tough and transparent polycarbonate plastic embossed with four site lines and the Zeekio logo. These cups maintain their shape well and look great. Spin Master's wide fixed axle is "v" shaped to draw the string to its center for the least amount of friction and longest possible spins. The wide axle is also great for stick grind tricks. Comes with fiberglass full sized handsticks, featuring metal tips and soft foam hand grips. Genuine Zeekio diabolo string is included, just cut to your chosen length (two strings included).