Add a sleek, professional finish to presentations, reference documents, proposals, and more with this light-duty comb binding machine. Perfect for the small office. Featuring an easy-to-use, streamlined design, the comb binder allows you to punch and bind in a continuous manner, increasing productivity. Star Plus Manual Comb Binding Machine manually punches up to 12 sheets at a time and binds up to 150 sheets with a 3/4" comb. Vertical document loader ensures consistent punch alignment. Efficient design allows you to punch and bind in a continuous manner. Adjustable edge guide easily centers documents. Document thickness/comb guide helps you select the proper comb width. A convenient, built-in, comb storage tray keeps supplies handy. Binding machine is made of plastic and metal.