Manual plastic comb binding machine punches up to 20 sheets at a time, up to 5,000 sheets per hour. Adjustable pins punch up to 14" wide, or 24 holes for legal and odd-sized documents. Machine binds up to 350 (2" thick) letter, legal and odd-size sheets with plastic binding. Bind up to 250 books per hour. Adjustable paper guide aligns sheets. Binding machine includes easy access waste and storage drawers.