Jack Richeson Iron Canvas Pliers - There's nothing like painting on a hand stretched canvas! These durable imported stretching pliers have serrated jaws for a secure grip to produce an even, uniform stretching over stretcher strips or bars. All metal, 8-1/2 inches long with 3-3/4 inch jaws. If you only occassionally stretch canvas the iron pliers are a good choice. They are very well made and durable. For artists who stretch a number of canvases, the Chrome pliers are highly recommended.