The non-rotary models, which are best for simple application of hackle to flies, are 2 1/4" long; choose from a brass model with a gold finish and rubber tubing on one jaw or a black tool steel model with duplex tubing (on both jaws). Rotary models, good for tying parachute patterns, have stainless steel jaws with rubber tubing on one jaw. Both the brass and bamboo long rotary models have a half hitch tool on the end of the handle opposite from the jaws.
The large size rotary pliers are great! The rubber ring on one side prevents slipping, the head rotates easily, it keeps a firm grip on the hackle stem, and the long handle lets you easily wrap around materials and tools that are hanging in the way. Top notch!