... method of cleaning ---- absorb away the stains.1.DescriptionMagic nano sponge is a new eco-friendly product,the diameter of composition ... . Household electrical appliances: telephone, air conditioner, fans, electric cooker, washing machine, etc.c. Bathroom products: mirror, table-board, bathtub, ceramic tile ... is ok,do not use the acidic bleach. Nano melamine sponge foam