The CLi Three-Hole Binder Punch with Ruler Edge is a convenient tool designed to fit any standard 3-hole binder. It punches precise 1/4" holes and features a built-in paper guide and ruler for accurate alignment. Crafted with a rust-proof metal punch base and heads, plus a plastic ruler and base, this durable punch is easy to carry with you. Available in a variety of colors, it combines functionality and style for all your paper organizing needs.