Tommee Tippee Twist & Click nappy disposal system individually wraps each nappy in multi-layer anti-bacterial film to lock away odours and germs. With so many nappy changes on your hands, you’ll appreciate a little help to reduce the number of trips to the outside bin especially in the middle of the night. Tommee Tippee Twist & Click nappy disposal system individually wraps each nappy in multi-layer anti-bacterial film to lock away odours and germs. Each refill cassette provides enough anti-bacterial film on average to wrap up to 1 month’s worth* of nappies depending on the size and number you use. *Based on the average nappy usage across the few years of nappy changing. With Newborn you will change your bub more frequently so cassette may last approx. 2 weeks however, as your bub grows, the number of nappy changes drops as well as the possibility you will get out and about more often, the cassettes will last longer.