Multi-purpose melamine composite sponge (3-layer) is an innovative household cleaning pad, made of powerful cleaning melamine sponge, complex the flexible pu sponge and soap inbuilt with unique technology. With the magic cleaning of melamine sponge and the toughness of pu, make it more durable, no breakage and last longer, don't need extra soap. Magical cleaning: with water only. Durable: last longe with pu sponge. Stronger: higher density, powerful cleaning with soap inbuiltshare kitchen melamine composite sponge is mainly made of compressed melamine sponge with higher density (10/12/16kg/m3), more dense and durable. Micro-fibres much smaller than ten thousandth of hair deep into the surfaces, specially on uneven surfaces, fast to remove the stubborn stains and old dirt, with water only, no detergent. It is the best cleaning sponge. Durable: abrasive-resistant, almost no fractured and dregs. Flexibility: good toughness, free kneading. Working principle The special structure of sponge foamed by micro-fibers smaller than ten thousands of human hair, will be activated by water as the capillarity, absorbing the stains just like countless micro-vacuum cleaners, adding the built-in solidified detergent with our exclusive technology to strengthen the cleaning ability. Tips: better effect with warm water. Note:keep out of reach of children and pets. Do not eat or swallow. Do not use on skin or other parts of body. Polythene