Since you will be wrapping about 5,000 times, you will surely appreciate anything that helps you go outside to the trash can less often. Tommee Tippee Twist & Click is the only diaper disposal system that wraps each diaper individually in a multi-layer, antibacterial film to seal in odors and germs. Each refill cassette contains enough antibacterial film to wrap all the diapers for up to a month, depending on the size and number of diapers you use. Twist & Click refill cassettes are designed for use only in Twist & Click and Sangenic Tec containers. Both containers twist and seal the diapers inside. Twist & Click refill cassettes are not suitable for use with Simplee Sangenic diaper bins. These refill cassettes do not fit in Simplee Sangenic containers.