Chrome-plated for case and handle, 65mm diameter dial, nylon calibrated cuff, 2-tube or 1-tube PVC bladder, PVC ribbed bulb

SW-AS18A: with 1-tube

SW-AS18B: with 2-tube

Chrome-plated for case and handle,  65mm diameter dial,  nylon calibrated cuff, 2-tube or 1-tube PVC bladder, PVC ribbed bulb.