[Multifunctional Fasteners]: The tarpaulin tensioner is an essential tool for outdoor fixing of tarpaulins, tents, awnings, poles, fishing rods and shade cloth. And the ball cords are also ideal for indoor use to organize cords, cables, hoses, curtains or to attach lights or other decorations. [Material]: The tarpaulin cords are specially designed and tested with high-quality black plastic and UV-treated elastic cord that can provide sufficient tension and firm fixation, which fixes the tent in the correct position and does not damage the skin. [Long-lasting]: The ball cords are made of 100% premium latex and UV-resistant elastic cords, which makes them weather-resistant, durable and long-lasting. [Easy to use]: The bungee cord with balls can be easily pulled through an eyelet hole or wrap the two threads of the looped end around the items you want to attach together and then slide the loop over the ball end. [Quantity]: There are 30 pieces of bungee cords in the package, the effective quantity will meet your many needs in life.