EASE OF USE: Bags come filled with corn cob media to allow for immediate useVERSATILITY: Can be used on virtually any surface and can be adjusted to any position needed while in useDURABLE: Constructed of water-resistant, 600 Denier polyesterCONVENIENT: Easy transport with the quick-connect system that secures the bags together for added organizationGUARANTEED: This product is covered by a limited lifetime warranty provided by Caldwell. Please contact Caldwell customer service for assistance