Birchwood's Rig-Rag Universal Grease Applicator offers one of the best ways to apply a thin, uniform coating of rust-preventative grease to firearms. Use the long-lasting sheepskin treated with Rig Universal Gun Grease to safely coat metal items, protecting them against rust and corrosion. Durable and practical, Rig-Rag Universal Grease Applicator can be used again and again- just add more Rig Universal Grease as needed. Rig-Rag Universal Grease Applicator comes packaged in a zipper-lock bag for easy, clean storage.