Derby Laces are treated with a performance wax that feels awesome to the touch. They stay tied, tight, and where you want them while skating. Derby Laces feel great in the hand while lacing. The tips on Derby Laces are molded out of the lace material itself. There is no plastic or metal bits to peel off or break. The lace tip is durable and simple damage can be repaired by flaming the ends. These 10mm wide flat skate laces have super strong fibers, high performance wax, and molded tips suitable for high performance sports and boots.