Premium Quality: Made of premium quality latex and nylon. And it was woven into a reliable high quality dichotomanthes rope. This makes it strong and stable. It also has good elasticity and is very hard to wear. You can recycle it for its long life Easy to use and install: the cords on both ends, finished in cast metal, allow for easier and faster repair. You can wrap to replace the old poor elastic chair rope with 2 kinds length of the lace Multi Usage: Diameter 1/4" (6mm). Set of 4 ropes, 2 long ropes (2.2m) for the backrest knee length and 2 short (1.4m).Universal fit - Fits Standard and Size XL models all sports Convenient and money saving: These shoelaces can be easily rolled up and will take up very little space, which is very easy for you to keep and take it with you.Repair your chair with the high quality replacement cords, you don't need to buy a new chair instead, save your money Notice: We value every customer's shopping experience and product quality very much.If there is any problem with our product, please feel free to contact us.We will definitely give you a refund or replacement as your satisfaction is our biggest goal