About this item Material: Natural Rubber. Color: Black, Yellow for your choosing. Packing: 10pcs for each order. Size: (Perimeter x Wide) Black: 380 x 10mm; Yellow: 400 x 15mm. This product is made of natural rubber, with good elasticity and flexibility, reusable and durable, reducing waste and cost. The rubber band is a useful tool to carry around at home. Use them to keep crafts, tools, and other items in order, or to bundle food packaging to keep food fresh. It is very suitable for making slingshots, DIY crafts, or used in daily life to bind and seal big bags, tie hair, stationery, office supplies, trash cans, folders, furniture, etc.