The HKS Revolver Speedloader instantly drops cartridges with just the slightest twist, loading the entire cylinder of your revolver. Strong metal points hold cartridges securely in the lightweight polymer body until released. The knurled aluminum knob allows for a sure grip under the most stressful circumstances and the also makes the speedloaders easier to grab out of a pouch. All HKS products are proudly made in the USA. HKS Revolver Speedloader Ruger GP100, S&W 581, 681, 586, 686 38 Special, 357 Magnum.Specifications and Features: HKS Revolver Speedloader GP100, S&W 581, 681, 38 Special, 357 Magnum, 586-A