True fit and comfort - ergonomically curved design .
Convenient and strong - the newly upgraded barb design more firm .
Times of elastic force without stretching (3 times of tensile force) . The material is made of 8mm stretch material, which is truly elastic and comfortable.
Solid material integrated molding - genuine material, solid color casting. High strength and toughness, durable without deformation .
Adjust length range through Shoelace buckle without cutting shoelace.Shoelaces can be directly fastened without cutting.