Derby Laces Teal Spark Shoelace For Shoes, Skates, Boots, Roller Derby, Hockey And Ice Skates (72 Inch / 183 Cm)HARDENED PLASTIC TIPS: SPARK by Derby Laces feature a hardened plastic tip that is extremely durable. PERFORMANCE METALLIC LACE: SPARK by Derby Laces create a natural friction when tightened to help them stay tied, tight, and where you want them while skating. DURABLE FIBERS: SPARK by Derby Laces are braided laces made out of metallic coated durable fibers. They have a unique texture that allows them to tighten and loosen easily. VARIETY: Derby Laces