SYEYCW 20 Pcs Large Silicone Elastic Bands Thick Elastic Bands Colorful Rubber Bands Elastic Rubber Wrapping Bands for Office Supply File Folders Books Art School Home Cooking Wrapping Product description Specifications : Material: Silicone Colour: Sky Blue, Red, Yellow, Green, Orange, Black, Grey, Pink, Blue, Purple Quantity: 20 Pcs Size: Length 140 mm; Width 7mm; Thickness 1mm 1. Silicone wrapping band is easy to fold, easy to curl, not easy to deform, not easy to break, can be carried around, perfect fit for all your needs. 2. Rubber bands are stretchable, not easy to deform, not easy to break, with high tensile strength and good resilience, and easy to restore to their original shape. 3. You can distinguish books or boxes by different colors of straps, which also can be used to help you with storage and organization for office, school, and home.