✔RECENTLY PRODUCED for 12+ MONTHS USE: The MFG Date (manufacturing date) was stampped on the package, shelf life is 2 years. Comes with 32 tablets of enzymatic washing machine cleaner. High efficientactive ingredients make your machine fresh & clean again ! Perfect gift for your family and friends. Unscented formula.✔REMOVE ODOR-CAUSING RESIDUES : Instantly dissolve and release active ingredients to remove odor causing residues efficiently. Keep your whole family clean and fresh. Each tab 1 x 1 x 0.5 inch, thinner and flatter than traditional ones.✔TRIPLE EFFECTIVE PERFORMANCE:Hiwill deep cleaning washer cleaner, bioactive enzyme and active oxygen formula, has triple decontamination features, strongly penetrate and decompose dirt. Use once a month to keep your machine fresher and cleaner and extend your washer life.✔PRACTICAL & VERSATILE: Designed to penetrate, dissolve and remove odo-r-causing residue, grimy build-up and soap scum that can occur in all washing machines. Suitable for front load, top load and high efficiency washing machines. Can also be used to clean bathroom floor and toilet bowl. Safe for septic system.✔EASY TO USE: Just empty your washer, place 2-3 tablets，soak and run a full cleaning cycle, wipe away residues. Can effectively clean the harmful and stubborn stains and keep clothes from additional pollution in the laundry process, breathing fresh again.