THE DIAMOND 3D URINAL SCREEN features Diamond & Spike Technology, with spikes of three varying lengths that help prevent splash back and cross contamination of urine to other areas outside the restroom. Its unique design can be installed on either side, ensuring correct placement every time. It eliminates 99% of urine splash, which saves custodial cleaning time and patrons' pant splatters. THE DIAMOND 3D is flexible for a proper fit to any urinal contour. The translucent design allows total viewing of the drain to ensure it remains free flowing as it collects debris before the drain is clogged. THE DIAMOND 3D is also safe for use in waterless urinals. The fragrance will last 30 to 45 days.