The Solvit Deluxe Car Safety Tether is the same tether included with our Deluxe Car Safety Harness.Since the tether generally stays in the vehicle, purchasing an extra tether is the perfect way to make a second vehicle "harness ready".This tether can be used with all sizes of Solvit's Deluxe or Economy Car Harness styles.Constructed from strength-rated materials and tested to 910kg., the tether is adjustable in length and works in any vehicle.Plus, it's covered by Solvit's Lifetime Warranty against defects in material and workmanship.