PE MATERIAL: The skating strap is made of PE material, which has good chemical stability and is resistant to most acids and alkalis. IMPROVE THE SKATING EXPERIENCE: Skate buckle roller skate accessories to improve the skating experience, the spider buckle of inline skates can help you better fix the position of the shoes, and exert more force when skating. EASY TO FIX: Straight Spider Buckle Easy to fix, stable fixing design can that you can fix your skating shoes well. CONVENIENT TO USE: This length of the skate laces is adjust, which is more convenient to use and can be used well. LONG SERVICE LIFE: Inline skating roller spider buckle is made of high quality materials,which is durable and has long service life.