Forward Action Applies Pressure Directly Over Work Surface , Easy-to-use, One-hand Operation , Speed Load Staple/nail Track System , Anti-slip Handle , Heavy Duty Steel Construction & Integrated Wire Guide, Built-in Window Shows Staples Remaining , Shoots 6 Sizes Of Arrow Fastener Heavy Duty ;narrow Crown T50(r) Staples & 9/16" Brads Upc : 666880080008 Shipping Dimensions : 1.50in X 8.00in