Material: Our black elastic cord is made of high-quality imported latex, using multi-strand rubber bands, its elastic force is stronger than that of ordinary single-strand elastic ropes, more durable, good quality, and will not break. Size: 4 mm thick, 10 meters long, the Bungee Cord can withstand strong impact wear and can be used for a long time. long enough for your use. Strong Elasticity: Our black elastic rope is thick and durable, full of elasticity, with an elastic ratio of 1:23; 10 cm can be stretched to about 23 cm. Features: Black elastic cord is Strong and durable, with strong elasticity and tight weave on the outside, it is the best elastic rope for trampoline rubber rope, round elastic elastic rope, beaded rope, and fixed and stretched items. MULTI-PURPOSE: Ideal for DIY projects, tents, beach umbrellas, camping, travel, boating, beading, jewelry making, party hats, also great for sweatpants or hoodies.