Widen Mouth with Rubber Mats No need to worry about we can not scratch the canvas well if the widen mouth with two rubber mats. As we all know, when we scratch the canvas with all metal construction pliers, it may cause damage to the canvas or slip during used. New upgrade canvas pliers completely solve this problem now. Soft rubber mats on widen mouth, which is non-slip and does not hurt the canvas.Extra wide serrated jaws, uneven surface allows it to hold the canvas tightly.Save Time and Energy The moderate handle length and the angle of opening meets principle of leverage, canvas pliers with detachable spring will not feel tired after being used for a long time. Canvas pliers with padded spring return handle for stretcher bars artist framing pliers art tool canvas stretching pliers. A useful and practical canvas pliers save time and energy in using.4.7 Inch Widen Mouth 4.7 inch widen mouth helps to better tighten the canvas, does not slip, does not hurt the canvas. It can also use to scratch curtain, tighten the leather on sofa or installation poster. Stainless steel construction pliers is high strength, heavy-duty, rustproof, durable and lasting use.