Quantity: Come with 30 pack large rubber bands rich quantities can keep a long time to use. Size: flat length is approx. 18 cm/ 7 inches,15 mm/ 0.625 inch in width and 1.5 mm/ 0.05 inch in thickness. Material: made of quality rubber,with strong elasticity and stretch. They're an excellent environmentally-friendly alternative to twine and box strapping as rubber bands can be used over and over again. High stretchy: these rubber bands have good elasticity, can help to avoid the strain and injury associated with repetitive banding tasks. Large rubber bands: can be used to bundle office supplies, trash cans, folders, furniture, DIY art craft in daily life. Rubber band an excellent environmentally-friendly alternative to twine and box strapping as rubber bands can. High stretchy: They're an excellent environmentally-friendly alternative to twine and box strapping as rubber bands can.