Eastern Maine Shooting Supplies, Inc. EMSS1135 Brass Button Tip/Jag Use With The Following Caliber: .41 – .45 Thread: 8/32 Made From Solid Brass, Designed For Smaller Diameter Ram And Cleaning Rods. For Best Results, Round Cotton Patches Are Recommended. *Please Note That All Of The Brass & Aluminum Supplies Are Made On Site. Sometimes Machine Setup Is Involved If Our Inventory Is Low. This Might Lead To A Slight Delay In Shipping Time. If That Is The Case, I Will Always Email You And Let You Know In Case You Need To Cancel. Thank You For Your Understanding. Please Visit Our Store For More Sizes And Choices