Ulfhednar has a number of support bags/pillows for different uses. All made with only the most durable materials. The "Hulder XL Mk2" PRS support pillow is designed according to demands from the sport. Filled with fine heavy sand that shapes itself perfectly to both barricade and rifle, for the best possible stability. To increase the friction they have put on a sticky wax on outside of the Cordura(R). The filling may be adjusted trough a secure opening. Materials: Cordura(R), UH-Web(TM)Dimensions: 10" x 7" x 5"Weight: 11.79 lbs