Works with S&W K-Frame (Model 19,66) Kimber K6, Rock Island 206, AL3, AL3.1, Taurus Model 856 6 Round Speed-loaders. Stack these loading blocks and you can shoot all day long! Easy to load the block right at the range and you'll be ready to use your Speed Beez speed-loader and reload faster than ever. Designed for the 38/357 6 Shot Speedloader. Holds your next 5 speed-loader reloads lays flat for stable loading. Have your next rounds ready to go when you use these loading blocks with your speed-loader. Grab a few today!