Workpro 8016 Pneumatic Staple Gun 21 Gauge With Staples 120PSI

8016 Pneumatic Stapler: The stapler is compatible with 21 gauge staple. Staple length: 1/4" (6mm) - 5/8" (16mm). Staple width:1/2”/12.8mm. Including 500pcs 1/4", 500pcs 3/8", and 500pcs 5/8" Staples.