Cord Winders are a great tool for storing tarp tie outs and other cordage. These plastic spools have a flexible cover, which folds open allowing easy access to wrap the rope around the core. They dispense quickly and easily to help you set up camp without frustration. These work best with 1.75mm-2.2mm Zing-It! and Lash-It!™ rope. The small size winder will hold roughly 6-feet to 12-feet of cord, depending on diameter. The medium size winder will hold roughly 12 feet to 20 feet of cord, depending on diameter. The large size winder will hold roughly 40-feet to 50-feet of cord, depending on diameter.