Caldwell Shooting 576578: Caldwell Deluxe Universal Front Rest Bagsfunctions with most brands of front rests. The exclusive hook and loop tabs on theFront Restallows quick installation and removal from the cradle without the time-consuming need to lace them on. The leather gives you a secure rest; the polyester (which will not stretch or sag) allows the bag to hold its shape. Choose theNarrow Bagfor most sporting rifles, or theMediumandWidemodels for varmint and benchrest rifles. These standardDeluxe Universal Bagsare used forCaldwell Rock Deluxe Shooting Restwith 4 Center Post. Available filled with ground walnut shells, or unfilled. The empty versions should be filled with fine, dry sand, or other dry, inert fillers.