Speed loaders crafted from high grade billet aluminum Durable O-ring ensures a smooth twist of the key Assembly hardware manufactured from high quality stainless steel pins, wire springs, and precision ground bearings Hand assembled and tested Light and durable construction Ideal for range or competitive use This speed loader is custom designed to fit the S&W 38/357 J frames. Rounds are released with a quick, short, counter-clockwise turn. Mfg: 5 Star Firearms SPECS: High grade billet aluminum, Durable O-ring, High quality stainless steel pins, Precision ground bearings, Hand assembled.