Material: made of high density nylon thread, strong toughness, moderate hardness, not easy to deform and environmentally friendly materials, durable.Brush diameter: 2, 3, 4, 5, 6, 8, 12, 16, 20, and 24 mm (1\/16, 1\/9, 1\/6, 1\/5, 1\/4, 1\/3, 1\/2, 2\/3,3\/4, and 1 in). Good cleaning effect: this brush set can easily reach inaccessible areas to clean the remaining corners.Application: very suitable for cleaning small openings, especially suitable for drinking rooms, cans, various hoses to easily remove dirt and debris.Convenientstorage: the brush is equipped with a removable key ring for convenient and quick access. The cleaning brush can be easily hung up and removed separately for convenient storage. Specification:Material: nylon, stainless steel. Colour: white. Length: 20 cm. Diameter: 2, 3, 4, 5, 6, 8, 12, 16, 20, and 24 mm (1\/16, 1\/9, 1\/6, 1\/5, 1\/4, 1\/3, 1\/2, 2\/3, 3\/4, and 1 inQuantity: Pack of 10 cleaning brushes Soft and safe:The nylonbrush has durable properties and the soft brush not only prevents scratches, but also protects you from injury when cleaning. You can use it safely. Application:Suitable for cleaning drinks bottles, espresso machines, colanders, drip tips, small nozzles, glasses, keyboards, various hoses, etc. Durable material:Made of high density nylon thread, good elasticity, strong toughness,moderate hardness, not easy to deform, durable.