Tommee Tippee Sangenic Cassette is a refill cassette designed to be compatible with all models of the Sangenic Nappy Disposal System. It contains the same multi-layer, antibacterial and odour blocking film that wraps each nappy individually. The film in this refill cassette not only provides an excellent odour barrier but also kills 99% of germs on contact. Simply drop the cassette into the top of the tub and it's ready for use in seconds! When the bin is full again, just follow the instructions from inside the tub to cut and tie the film and then empty the nappies into your outside bin. Each cassette wraps up to 84 size 1 nappies.