This is a must have for any facility with stairs, improving the hygiene of high traffic areas by reducing dirt and bacteria travelling through a building. This unique brush cleans the uprise and the step simultaneously, reducing your cleaning time. With the same filaments as our fantastic medium duty brush this gives an exceptional clean to all hard floor. Also very effective cleaning out elevator thresholds, stair treads and slotted flooring. 5.1 high x 8.5 diameter.