1.Don't need any cleaning fluid, just need water .Then , the sponge can move the dirty away easily. 2.Nano magic sponge is anew eco-friendly product, the diameter of composition particle is small and hexagonal body with superior scavenging ability. 3.Applied tocomputers, keyboards, fax machines , telephones , copiers , printers , color tvs.And another daily necessities to scour dust. Only need to water .Without detergent .It can protect skin , use easily, and cut the blocks size freely. 4.After the water gently squeezed , wipe the dirt , then wipe water with absorbent cloth. Do not force too large when cleaning items so as to avoid damaging to the brittle items.