C.S. OSBORNE No- 249 - Canvas Stretching Pliers for Upholstery Enter your model number to make sure this fits. C.S. OSBORNE No- 249 - Canvas Stretching Pliers for Upholstery Overall length (in): 9, Maximum jaw opening (in): 3 3/8, Weight each (oz): 16 Works also on heavy and primed canvas. Fully nickel plated. Vinyl handles to add comfort.