Apex 898159002385 Prime Multi-Purpose Bean Bag (Black) The Apex Prime is a multipurpose photography support: flat or V shaped Ideal for use on the ground, irregularly shaped surfaces, railings, vehicles, or tree limbs. Constructed with the best materials available: waterproof Cordura fabric, High-Tac non-slip inlays, and tough long lasting velcro straps. A great sack for safaris! Carrying Handle & Fold-Up Design