The TCC21 by HOP is a simple, portable combination punch & binder that is perfect for travel. Simply place the paper into the slot, pull two levers, and the document is bound. With separate handles for punching and comb insertion, it meets standard punch and binding needs. Punches up to 20 sheets per pass and binds documents up to 425 sheets (2" thick). Binds documents up to 12" in length.