Hengs HG80009 Twist Chock Tandem Wheel Chock, Universal to 10″

Uses expanding force between the tires to stop rotation eliminates front-to-back rocking motion. Installs quickly with a cordless drill. Tire gripping to ensure a secure fit. Heavy-duty rust-proof steel design. Universal fit, tire spacing up to 10″. Limited lifetime warrantyWARNING: Cancer and/or Reproductive Harm. See