Material: Elastic cords are made of high quality elastic cord and plastic, flexible, durable for long term use and easy to tie securely. Application: Tarp tensioners with ball can be used not only to secure tents, tarps, car and boat covers, but also to tie wires, data cables, curtains, sleeping bags, flashing lights , reflective umbrellas and light holders for easy storage and bearing. High Elasticity: Help you hold things and can be used repeatedly. Fermented Knot: Thread the ball joint through the other end of the elastic cord and pull tight, the cord will get tighter and tighter, great for tying down tents, luggage, etc. Quantity: 10 pieces of tarpaulin bungee cord, easy to tie, help you organize and store items quickly, meet the need for repairing tents and tying down items. Tarp Tensioners with Ball Material: rubber, plastic Color: black Quantity: 10 pieces of elastic cords Size: Rope Length - 13.7cm Ball Head Diameter - 2.2cm Application: Fixed items, such as tents, awnings, tarps, tarpaulins, car/boat/furniture covers, flags, banners, trampolines, awnings, etc. Tie down objects, such as wires, data cables, curtains, sleeping bags, luggage, flashing lights, reflective umbrellas, light stands, etc. Notes:1. Keep away from children under three years old. 2. The ball head is heavy, please don't use it to play, otherwise you may bless yourself.3. There may be 1-2cm error due to manual measurement.