Features: High elastics tactically rubber band provide excellent tensile performances, ensuring long terms use without deformation. Each rubber band have a moderate length and elastics that can adjusted as need. Wear resistant, waterproofs, and highly temperature resistant, suitable for various complex environment. Suitable for outdoor sports enthusiasts, sports trainers, photographers and other people who need multifunctional rubber Band. It can used in various condition such as training, wilderness survival, sports training, and fixed photography equipment to meet different needs. Specifications: Materials: Rubber Set quantity: 10pcs/20pcs/30pcs/40pcs/50pcs Diameter: approx. 5.4cm/2.13inch Width: approx. 1.1cm/0.43inch Package Includes: 10pcs/20pcs/30pcs/40pcs/50pcs Rubber Band note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.