Fine Tip Cautery Pen, High Temperature -Intended for coagulating tissue or arresting bleeding from small vessels by heat conducted through the wire tip for ophthalmic, general and plastic surgery -Alkaline battery-powered cautery available with various tip styles -A protective cap covers the switch and top -The tip heats in approximately 1.0 second -At low temperatures, it glows a dull gray at the tip; at high temperatures, it glows a bright red Non-Latex