Officemate Heavy-Duty 3-Hole Electric Eco-Punch, 30 Sheet Capacity, Black/Gray/Green (90110) Electric punch with built in paper guide makes punching easy as a touch of a button Features high capacity removable chip tray and reverse function to prevent paper jams. Punches 30 sheet capacity of 20 lb Paper Eco-punches are made from 30% recycled plastic and have antimicrobial protection