NuMax Upholstery Stapler  22 Guage  SC22US Ideal for Automobile Interiors, Silk Screen Assembly, Fabric Applications, Light Wood Assembly, Lightweight Aluminum, Crafts and more Trigger safety mechanism prevents accidental firing, extension nose for hard to reach places, single hand operation Drives typical 22 Gauge 3/8 C-Crown upholstery staples 1/4-inch - 5/8-inch in length, compatible with Senco 71 series C-Crown Staples Extended nose for hard to reach places Easy load magazine, single hand operation