SPARK by Derby Laces create a natural friction when tightened to help them stay tied, tight, and where you want them while skating. Made out of metallic coated durable fibers. They have a unique texture that allows them to tighten and loosen easily.
Guidelines for choosing lenght: Standard lenght is 72" (183 cm) many Bont skates uses 60" (152 cm), Antiks use 96"/108" (244cm/274cm)
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