This effervescent tablet is smaller, thinner and better designed to remove odor residues. It can deeply disintegrate stubborn stains accumulated for years. Effectively reduce disgusting odor and brighten the washer tank. Just empty your washer, put 1 piece of effervescent tables into the drum and carry out “clean washer” cycle, no need to disassemble the washer. This washing machine cleaner is suitable for cleaning septic tanks, front load washing machine, top load washing machine and conventional washers.  Keep your washing machine clean and fresh. Size: 2.6cm*2.6cm