Specifications:Material: Plain carbon steel Features:The jaws are heat treated for added durability.The ergonomically designed plastic handle is aesthetically pleasing and comfortable to hold.With adjustment screw, control the amount of pressure applied to prevent excessive force from smashing the glass.It is used for glass and ceramic cutting after opening, preventing the hand from directly scratching and scratching, making the opening easier.The rubber cover is used, the cover protects the glass from being scratched or crushed, and the rubber cover can be removed to cut the glass.