meite SC760B 16 Gauge 1/2-Inch C-Ring Gun Hog Ring Tool Closure Pneumatic Tool for Mattress Easy Loading Process. Ultra Light To Reduce Operator Fatigue Muffler Inside Provides Silent Operation, Includes oil, one adjustment wrenches To be used in wire cage, car seat. spring mattress, bedding, wire connections and so on Fasteners: meite 16 Gauge C Ring Staples Inside Diameter of 3.2-4.8mm This gun has 2 colour: yellow & grey. It will be in random shipment, but not specifying a color.