The Diaper Genie Twistaway Refill provides odor-proof protection that works to neutralize tough diaper odors! The Twistaway refill is designed for babies of all ages and replaces the Stage 1 Infant refills and the Stage 2 Toddler refills. When used with the Diaper Genie Twistaway Disposal pail, this film will offer the strongest odor protection - even against the smelliest diaper odor. For the best performance, empty soiled diapers out of the pail at least every three days. Features: Specially designed technology that works to ELIMINATE diaper odors. The pleasant fragrance leaves your Diaper Genie System and Nursery smelling fresh and clean. Designed to be used for babies of all ages. Wraps approximately 140 Large or 180 newborn diapers. Lasts about 4 weeks.