Harness the weight and resistance of your body, applying it to your strength of your workouts with the GoFit(R) Gravity Straps . Install the straps into any doorway, without hardware for an effective, portable workout anywhere. GoFit(R) Yourself Hardware-free harness trainer Adjustable resistance training using your own body weight Build strength, increase your balance and gain core stability Includes: 2 GoFit(R) Gravity Straps with Door Anchors, 2 Handles, 2 Ankle Cradles, Mesh Travel Bag, Gravity Straps Training Manual