The GoFit Multi-Anchor Door Strap works together with GoFit strength training tools (sold separately) in a stackable, expandable training system using interchangeable carabiner connections. Train anywhere, anytime with a full range of weight resistance for virtually every workout level. The strap has 5 heavy duty, pre-positioned anchor loops that are amply-sized for all your resistance workouts, a strong adjustable urethane buckle, and an adjustable length, fitting doors up to 7 ft. 6 in. tall.Features Total-body strength training tool for ultra-versatile exercise options Strong, adjustable urethane buckle; adjustable length fits doors up to 7 ft. 6 in. tall Works with virtually all rubber resistance training tools 5 heavy-duty, pre-positioned anchor loop are amply-sized for all your resistance workouts and positioned for key workout angles Durable, double stitched web material Dimensions: 2 in. W x 15 ft. 9 in. L Includes carabiner for additional connection options and owner's manual