These are special stands that are used to safely lift your Tesla vehicle. Due to the nature of the battery, lifting the vehicle without these stands can cause damage. The pucks are made of natural rubber, making them strong and durable. The Jack Pad locks securely to the Tesla's frame, providing good cushioning between the jack and the frame without damaging the bodywork. They are easy to set in place thanks to the convenient o-ring, allowing you to lift your vehicle quickly and safely.