simplehuman's 18L butterfly step can has an innovative butterfly lid design that opens from the center for maximum clearance under low countertops. It also has a taller, narrower shape than our 20L butterfly step can that makes the most of really tight spaces. The strong steel pedal and patented lid shox technology ensure the can will function smoothly and quietly for years. simplehuman's code L liner fits this can perfectly — no bunching or slipping for a cleaner trash experience.