From the Manufacturer
Arrow's Heavy Duty Plier Type Stapler reaches in hard-to-get-at places for stapling from any position or angle. This stapler has an all steel construction with chrome finish, a jam-proof mechanism, tireless cam-leverage action, visual refill window, removable staple channel for cleaning, and a hang guide loop. It takes 1/4-inch and 5/16-inch staples and is ideal for hundreds of heavy duty bagging, tagging, and sealing operations.
Loads 150 staples in 2 sizes: 1/4'' and 5/16''. Deep 2 1/2'' throat reach. Cam activated power leverage. Removable staple channel. Visable refill window. Hand guide loop. Uses model