"The Caldwell Rock 2 Jr. Shooting Rest with Rear Rest is a complete, streamlined bench rest system that delivers more bang for your buck than any other. The Rock 2 Jr. features a rock-solid iron base that resists flexing or bending, virtually eliminating movements that detract from accuracy. The Rock 2 Jr. features a large elevation wheel that provides fast, secure adjustments. The DeadShot Air front bag fits a wide variety of stock profiles and has clearance for sling swivel studs. This model also comes with the DeadShot Air Molded rear bag that provides 4 different height options and attaches to the frame for storage and transport. Iron base with 3-point stance eliminates flexing and movement Large elevation wheel with 2"" of range that equals 300"" of travel at 100 yards 3 rubber feet prevent slipping and sliding DeadShot Air front bag fits a wide variety of stock profiles DeadShot Air Molded rear bag provides 4 different height options"