The Replacement Heavy Duty Smokers Head (model 26770) is great to have on hand in case of emergencies. It can be used with Justrite Heavy Duty Butt Cans models 26810R and 26811R. This flame-retardant polyethylene topper is an essential part of the ashtray, as it discourages unwanted trash and attracts cigarette litter with its molded graphics. It also minimizes rain overflow and dissipates the heat given off by any lit butts.No tools are required to detach and reattach.