Vileda Wettex Wet Sponge Cloths are handy cleaning tools that wipe down any surface, while picking up dirt, absorbing water, and leaving no streak marks and lint behind The super-absorbent cloths can absorb up to 4 times its weight in liquid Grooves along the surface of the cloth facilitate effective particle pick-up, while a special formula helps to discourage odor The cloths are made of 100% natural materials including cellulose and cotton, and is machine-washable for easy cleaning