CanDo resistive band exerciser is packaged in a polybag. Simply remove exercise band from polybag and it is ready to use. CanDo high quality synthetic latex-free exercise band has been used for physical therapy and athletic training by clinics, fitness centers and individuals since 1987. It has become a well known staple of many physical therapy programs. The latex free formula has been specially created to mimic the stretch characteristics of latex band. CanDo exercise band is an economic solution for upper and lower body exercise. Lightweight, compact and portable. Durable. Effective when used alone, or with handles and anchors. Color-coded according to the exercise band's resistance. CanDo is licensed to use the Thera-Band color sequence so resistance level is easily identified. Available in 8 levels of resistance for progressive exercise. Levels range in order of resistance from least to greatest resistance: tan, yellow, red, green, blue, black, silver, gold. Each band is 5 inches wide and 5 feet long. Box comes with 30 silver bands which are XX-Heavy in resistance.