Check the listing for details. Aluminum RV Stack Jack Stand Camper Trailer Lift Support - 4 Pack. Condition: New other (see details). Listed at 30.99 USD. Brand New, Scratch and Dent item. Jacks have some minor scuffs and scratches (SEE PHOTOS) Comes complete with 4 Stabilizing Jacks. Textured Finish, No Sharp Edges Extends 11" to 17" For Stabilizing Travel Trailers Base made of Aluminum Die Cast Maximum Capacity: 6,000lbs per Stabilizing Jack For Stabilizing Only Not for Lifting Upgrade your camper trailer lift support with the 4pk Aluminum RV Stack Jack Stand. Made of durable cast aluminum material, this set of four stack jacks can support up to 6000 lbs, making it perfect for heavy-duty use. The adjustable feature allows it to extend from 11 inches to 17 inches, making it suitable for various applications.Brand New, Scratch and Dent item. Jacks have some minor scuffs and scratches (SEE PHOTOS) Comes complete with 4 Stabilizing Jacks. Textured Finish, No Sharp Edges Extends 11" to 17" For Stabilizing Travel Trailers Base made of Aluminum Die Cast Maximum Capacity: 6,000lbs per Stabilizing Jack For Stabilizing Only Not for Lifting Upgrade your camper trailer lift support with the 4pk Aluminum RV Stack Jack Stand. Made of durable cast aluminum material, this set of four stack jacks can support up to 6000 lbs, making it perfect for heavy-duty use. The adjustable feature allows it to extend from 11 inches to 17 inches, making it suitable for various applications.