Camco Yellow Drive On Tri-Leveler, Raises Your RV Up by 3-7/8" Works on Any Tire , Has Built In Handle, Load Capacity of 4000 lbs, Durable Non Slip Surface (44573) Raise your RV up to 3-7/8" on any tire for a more level position Load capacity of 3500 lbs Helps appliances and tanks operate more efficiently Lightweight, durable resin has a non-slip surface Has a built-in handle