The Pocket Punch is a great little pocket tool, which not only punches holes, but also has a place to put your barbed fitting or emitters on the end of it for easy insertion. Very easy to use. The U shaped end holds the pipe in place as you grip the ergonomic finger grips and your palm pushes the plunger forward and it makes a hole in the center of the pipe. The notch at the top will help in removing barbed fittings and emitters. Item is approx. 5" long.