This kind of bucket is suitable for public using, such as hospital, school, hotel, and so on. capacity 16litres. their advantages are: 1). Innovative Patented Product. 2). Made of high quality material for strong and lasting use. 3). Simply operate. No need to hand wash and squeeze dry the mop. 4). Keep hands dry and avoid contact with dirty contaminated water.5). 3 directional spinning wheels roll smoothly and avoid scratching the floor.