Stanley-Bostitch AntiJam Standard Electric Stapler - 20 Sheets Capacity - 210 Staples Capacity - 1/4" Staple Size - Black Exclusive Impulse Drive design for 3X faster stapling speed No-Jam technology eliminates frustrating staple jams Refill alert light indicates when to reload staples FastLoad push-button, staple-refill system Staples up to 20 sheets using standard staples