This is a Birchwood Casey Cloth known as the Barricade Rust Protection Wipe, model BC-33025.
Since 1948" serious shooters" avid collectors and professional gunsmiths have relied on Birchwood Casey for shooting and gun care products that have stood the test of time. Birchwood Casey has pioneered innovative products with an unwavering dedication for quality.
Features:
Anti-Rust Film
Sealed Foil Packet
5 x 8 Cloth