Caldwell The Rock BR Adjustable Ambidextrous Rifle Shooting Rest for Outdoor Range DIMENSIONS: Weighs approximately 13 pounds with a 14 inch diameter. 11.5 inch 2-stage elevation adjustment ACCURACY: With windage adjustment, fine elevation adjustment, independently adjustable feet (non-marring foot pads available, not included), coarse elevation, and an adjustable forend stop for precise positioning, this rest is solid and dependable NON-DESTRUCTIVE: This rest can be used with a filled, medium varmint bag (included), a 3-lobe bag (included, unfilled) and is compatible with any Caldwell Deluxe Front Rest Bags, that will securely hold your gun without damaging the barrel or stock EASE OF USE: Adjustment knob is conveniently placed to allow for easy adjustments that do not require removing the gun from the rest VERSATILITY: This rest works with all Caldwell filled bags for narrow or wide forends and also raises high for use with guns that have detachable magazines