The 1791 Gunleather Revolver Thumb Break Belt Holster Size 4.3 better known as the RVHX-4.3 is handcrafted and molded by leather artisans from 100% certified American heavy native steerhide. The RVHX-4.3 incorporates a thumb break snap closure to optimize security and retention when carrying a revolver. It is designed to accommodate L-frame (medium frame) revolvers with barrels up to 3″ and is the perfect match for Colt Python .357/.38 or Smith & Wesson 686 Plus among others.