The ISM AC150T pneumatic box stapler drives 3/4" leg 1-1/4" crown C series carton staples. Includes one year manufacturers warranty. This heavy duty stapler is excellent for high and low volume carton closing projects. Specific applications include folding boxes, complete overlap, and more. ISM box staplers are manufactured to the highest quality standards. They feature a lightweight, well balanced, efficient, and extremely durable design.