●✔LOAD-BEARING CAPACITY: The Trailer Tire Leveler is made of heavy-duty powder-coated steel to ensure firm and sturdy. This reliable construction can guarantee a maximum load of 3000 lbs. ●✔EFFORTLESS LEVELING: Light Trailer Tire Leveler can be used with the Single Tire Locking Chock. You don’t have to move trailer onto blocks or ramps. ●✔APPLICABLE SPECIFICATIONS: Suitable for most 13 inch, 14 inch and 15 inch wheels with up to a 28 inch tire diameter. Adjustable baffle allow the RV tire trailer leveling to fit the tire more accurately. ●✔COMPATIBILITY: RV leveler is designed for light, single axle trailers only. Including a ratchet wrench that can be used to turn the drive screw, elevating or lowering the tire lifting pads to the level position. ●✔LIFETIME WARRANTY--Thanaddo come with lifetime warranty for levelers. If you experience any issues, please feel free to contact us for a full refund or a free replacement.