Design for medium-duty binding in small offices, this manual binding machine punches and binds continuously for maximum productivity. Use to punch up to 18 sheets at a time or bind up to 300 sheets with a 1-1/2" plastic comb. Maximum document width is 12". Load vertically for accurate punch alignment. Adjustable edge guide centers documents with ease. Design also features plastic/metal construction, vertical punching, document-size gauge, binding element selector and punch margin-guide setting. Pulsar Plus 300 Manual Comb Binding Machine includes comb storage tray, document measurement tool and binding starter pack.