【High Elasticity】Nylon elastic rope design provides constant tension and a firm grip, which can be stretched to twice its original size. 【Easy Installation】Elastic tarp ties are easy to put on and take off. Pass the elastic ring through the eyelet, pass the tarpaulin rope through the hook, and then pull the ring on the plastic ball, which is easy to use and safe. 【Multi-purpose】 Elastic tarp balls are the perfect choice for securing tarp, tent, flag, blanket and trampoline. Elastic tarp ties are very suitable for boating, camping, farm and garden. The ball stretchers are also the ideal tool for sorting out messy ropes, cables, pipes and curtains indoors. 【Strong and Durable】The tarpaulin stretchers are made of high quality materials with heads of plastic ball, durable and wear-resistant to ensure that they remain intact after repeated use. Tarp bungee cords with bungee hook are versatile and lightweight, yet strong trekking accessories. 【Detailed Dimension】The length from the ball head to the top of the bungee ball ring is about 20cm, stretched to about 35cm, and the diameter of the ball head is about 22mm. Specifications: Material: plastic and elastic cord. Screw length: 20CM Color: black Features: Easy to use, just fix the thing to be tied, move one end of the ball to the another, then to completely secure the object. Elastic balls can be used for tarps, awnings, ski racks, to attach bicycles to the frame, and to fix Christmas lights on the rails...etc. Strong and durable, nylon elastic rope loop with plastic ball head, weatherproof, durable and wear-resistant. The Elastic rope can be used in combination to increase its length, which is suitable for more scenes. High quality elastic rope and plastic ball, quality assurance. Package Include : 35 X Black Elastic Balls Note: Please check the size measurement chart carefully before making payment.</p > Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm) The color of the actual items may be slightly different from the listing images due to the computer screen difference, thanks for your understanding. Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.