SME's Front & Rear Gun Rest bags holds your rifles solidly in place when sighting-in. It is constructed of durable, water resistant 600d polyester with non-marring flannelette surface contact and reinforced stitching. The bags features a quick connect for easy transport and is filled with 100 percent inert polybead filler or fill the bags with your desired media, sand, corn, rice, birdseed, etc. The density of the media will determine the weight of the bags. FEATURES Non-slip bottom Inert poly bead fill Suede leather topper to protect stock Front and rear bag included Mfg: Shooting Made Easy