FASCO F1B 7C-16 Stapler Auto L/M: Adjustable automatic speed firing capability and a long magazine. Uses easy-to-find Senco C series, BeA 71 and Empire 7 staples. Speed knob lets you dial cyclic rates - from single shot to wicked fast. The double length magazine cuts loading frequency in half. Great for all upholstery and bedding high speed applications.