Description: Lock shoelaces, originally designed for triathletes to decrease transition time, are a great gift for seniors suffering from arthritis or other disabilities, autistic children, runners of all ages, and casual users.
Material:  plastic buckle and elastic rope.
Stretch Fit Comfort: Lock Laces 6-strand fibers are 0.3 cm in diameter, 100 cm in length, and can stretch up to 180 cm.   
Size: One size fits all
Full pad (free size) 22.5cm-27cm
Half pad (free size )12.5cm

Package: 1 pair of insole