Material: PC, PA, POM, wire rope Packaging: 1 Pair Size: As picture It is made of high-strength materials to make its strength and durability super strong. It is specially designed for sneaker and can resist fighting and abrasion for a long time. The design of the shoe buckle allows you to wear and remove your sneaker easily and quickly without repeatedly fastening or unbuttoning. With only one simple rotation, you can tightly fix or loosen your shoelaces easily. The shoelaces can be firmly fixed to prevent you from loosening or even unbuttoning your shoelaces during exercise, thus ensuring your safety. It can effectively improve your exercise efficiency and let you focus on your exercise instead of shoelaces. It provides you with an extremely convenient shoelace adjustment method. You can adjust the fastness of your shoelaces at any time according to your comfort level without worrying about too tight or too loose shoelaces. Note: Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding. Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much.