Unlike free weights, the best resistance bands are cost-efficient enough that you can keep a full range of resistances available for your personal use or for any fitness class. Sold separately are five resistance levels and dispenser boxes of either six or fifty yard rolls. Cut the bands to any length you need. Latex and powder-free. 4 inch wide bands. The Ultra Versa Tube is perfect for personal training and for use in fitness clubs and home gyms. All the resistance tubing from Power Systems is produced using a unique layering process that improves longevity in commercial or institutional settings. Nylon sleeve on tube helps prevent wear and tear. Tubes help to strengthen muscles, improve balance, and prevent injuries OR help in recovery. Sold separately: six resistance levels for any user, whether you are an experienced athlete or just beginning fitness training. Plastic handles. 48 inches long.