The Wave Urinal Screen has anti-splash nibs which diffuse urine stream and prevents splashing onto walls, floors and clothes saving cleaning time by up to 50%. A used Wave will shrink by 30% in 30 days, highlighting time to change screen. By using different frangrances each time you change your Wave patrons will notice the pleasant frangrance more than the same old one. Can be used in all urinals even waterless urinals.