describe Stable and durable: rubber tensioner inside Product Better than cable ties. These stretchers can be used several times. By moving the knot, the length of the rubber may be different from yours. Too soft tarps will ;stretch quickly. These tensioners are used as a universal tool for securing advertising tarpaulins, Floors, cables, advertising banners on beams, etc. in or on frame structures. A place that needs a fixed time. the black Material: latex yarn + polypropylene. Ball diameter: 22mm. Maximum load: approximately 5 kg. content: 30 rubber tensioners (20 cm). Latex, elastic and reusable. The plastic and rubber are weather resistant and suitable for indoor and outdoor use. EASY AND QUICK TO USE: The tarp stretcher is easy to put on and take off. Simply pass the rubber bands through the eyelets and pull them over the ball. Wide range of uses: tent rubber bands with balls are ideal accessories for protecting roof and garden tents , and can also be used for the flexible attachment of advertising banners, scaffolding banners, construction tarpaulins, etc. Scope of delivery: 30 black rubber tensioners (20 cm)