The Newborn Z-Lite Lightweight Rodless caulking gun has a steel frame that fits 1/10-gal. cartridges and has a 10:1 thrust ratio for use with low and medium viscosity materials such as latex and silicone. The rodless design is compact and lightweight for use in hard-to-reach places. It has a knob-operated steel strap plunger for flexible dispensing. There is a belt hook that allows the gun to hang from a belt when not in use. Caulking guns, also called caulk or cartridge guns, dispense a controlled flow of products such as caulk, sealants, and adhesives from a tube or cartridge. A manual caulking gun consists of a frame which holds the tube, a trigger, and a rod which moves forward when the trigger is depressed, dispensing the product. Manual caulking guns have a thrust ratio; the higher the thrust ratio, the easier it is to dispense the caulk, sealant, or adhesive. Air-powered or pneumatic caulking guns also have a frame and a trigger, but are used with an air pressure regulator that pushes the product from the tube using air pressure instead of a rod. Newborn Brothers Company, Inc. manufactures sealant and adhesive dispensers and accessories. The company was founded in 1974 and is headquartered in Jessup, MD.