The J-STRIP(TM) is designed specifically to fit 5-shot J-frame size revolvers. Correct 2-2-1 cartridge spacing of this speed strip ensures real fit with most 5-shot J-frame sizes including: S&W, Taurus, Rossi and Charter Arms (older models). The J-STRIP(TM) works well with any grip size to load two cartridges at a time. Great for concealed carry. The J-STRIP(TM) fits flat in pockets of shirts, pants, vests and jackets. The J-STRIP(TM) works well with all bullet types including wadcutter and Federal HST +P Micro ammunition. Made from tough BPA, BPS, BPF free polyurethane material for use in both hot and cold environments. The Zeta6&tr Mfg: Zeta6