Feature 1Adjustable Height: RV stabilizer jacks with a height adjustment range of 28-44cm, allow for fine tuning to achieve optimal stability and balance. 2Wide Application: Whether it's Travel Trailers or other types of RVs, these stabilizer jacks can effectively stabilize, balance, and secure your vehicle. A safer choice for parking. 3Heavy Duty Capacity: These RV stabilizer jacks can withstand a maximum weight of 2.7T, making them suitable for from small campers to large travel trailers. 4Four Corners Support: With four stabilizer jacks supporting each corner of the vehicle, the weight of the vehicle is balanced to prevent movement or tilting, ensuring the safety of your parking. 5Aluminum Alloy Material: Made of aluminum alloy, these stabilizer jacks are sturdy and reliable, impact proof, anti wear, and tear resistant, ensuring long lifespan. Item Type: RV Stabilizer Jacks Material: Aluminum Alloy Standard Load Capacity: 1T Maximum Load Capacity: 2.7T Height Adjustment: Approx. 28-44cm / 11-17.3in Applicable Vehicle Types: Travel Trailers RVs Campers Application: Whether you have a small pop up campers or a large RV trailer, these stabilizer jacks for travel trailers and campers will provide much needed stability. Package List 4 x RV Stabilizer Jack Bracket 4 x RV Stabilizer Jack Screw Note These stabilizer jacks are only for stabilizing use, not for lifting. It is recommended to place wood or concrete blocks under the jack for better use.