This HKS speed loader instantly loads all six cartridges into any revolver. Securely holds rounds until released with a turn of the knob. Proven by decades of use in law enforcement. Manufacturer: HKS Fits: Smith & Wesson K-Frame Models 10, 12, 13, 14, 15, 19, 64, 65, 66, 67 Taurus Models 606, 65, 66, 80 and 82 Rossi Models 971, 951 and 851 Caliber: .38-.357 Capacity: Holds 6 cartridges