simplehuman's fingerprint proof butterfly step bin has an innovative butterfly lid design that opens from the center for maximum efficiency and clearance under low countertops. The slim, space-saving shape makes the most of tight spaces, while the strong, all-steel pedal and patented lid shox® technology ensure the can will function smoothly and quietly. The strong steel pedal is engineered to last over 150,000 steps - that's more than 20 steps a day - for 20 years. Uses size R liners (82211708).