Proven No. 1 in odor control (Proven No. 1 in odor control when tested against other major competitors that use ordinary garbage bags and/or carbon refills under the most rigorous conditions of emptying the pail). Revolutionary double-lock design and 5-layer refill seal in odor. Dual-lock clamp system seals in odor. Ergonomic: No need to bend. Easy to hold baby and dispose of diaper. Hygienic: Diapers touch the film, not the pail, for mess-free disposal. Twist-Free: Eliminates twisting to make disposal easier. Prevents odor unlike an ordinary pail and plastic bag. Antimicrobial inhibits odor-causing bacteria. Easy to use: Foot pedal for hands-free disposal. Includes: one refill with 5-layer odor-barrier technology: locks in smells and minimizes cleanup. Each refill holds up to 270 diapers. The perfect shower gift! No. 1 selling brand. Millions of Moms can't be wrong! Assembled in USA. Cartridge made in Canada. Cutter and springs made in China.