By taking the 'slop' out between the S&W hammer or trigger and the sideplate, you can smooth up and improve trigger pull significantly. Fits S&W K, L & N frame only. SPECS: 302 Stainless steel, .002' (.0508mm) thick. Two
models; #1 for S&W hammer pivot; #2 for
S&W trigger pivot. Pak of 10.