These tablets do an excellent job. Just throw one in and run a cycle. Easy and convenient. 12 Piece Washing Machine Cleaner Disinfection Sterilization Effervescent Tablets Decontamination Solid Washer Deep Cleaning Tablet Eco-Friendly: Made with environmentally friendly ingredients, the cleaner is safe for your machine and the environment. Regular Maintenance: Use once a month to keep your washing machine in optimal condition, extending its lifespan and improving its performance. How to Use: Place one tablet directly into the washing machine drum (do not place it in the detergent dispenser). Run a normal cleaning cycle with hot water. Once the cycle is complete, your washing machine will be clean and ready for use. Features - Universal - for any washing machine - Use to clean your washing machine, not clothes - Run on rinse with the effervescent tablet to clean your washing machine - Deep cleaning - Sterilization and disinfection - Eliminate peculiar smell - Safe and reliable What's in the box 1 x Washing Machine Cleaner Tablets - Set of 2 pack