Hook Strap Antique Brass Rolling Barn Door Hardware Kit with 2 3 4 in. Wheel Gutter Systems fasteners TRIGGER: Sequential drive mechanism fasteners TRIGGER: Sequential drive mechanism ensures precision nail placement DRY FIRE LOCKOUT: Dry fire lockout prevents the nailer from firing with no nails POSITIVE SAFETY: Positive safety allows the tool to use the nail as a guide without damaging the collation GRIP: Rubber grip provides comfort and ensures a secure grip AIR DEFLECTOR: Adjustable air deflector directs the air exhaust in any direction NARROW DESIGN: Allows for ease of use in tight spaces With a trailer ball capacity of 10 these kits come ready to quickly install Kit comes with all the parts needed to hang up to a standard 36 in