This is a general purpose grease gun that is good for all household jobs or light duty work in the shop. It comes in a black metal casing that takes 14 ounce cartridges. It is capable of producing up to 6000 psi. Like I said, this is your plain, straight up standard duty grease gun. It has a nice long lever to get good leverage on it. To operate this you pull the lever up and push it back. It delivers a shot of grease out the front. You have a rigid design tube here, it is about six inches long and now we will show you how it works and how to get grease inside. To load this grease gun you pull the lever back, and it goes in this dent in right here. Now you just unscrew the head assembly from the barrel. Then you pop in your cartridge per instructions then you just go ahead and reassemble it. It is released out here and the spring tension takes care of delivering the grease. That is part # L30200, the LubriMatic standard duty lever action grease gun from Plews.