The OEM Genuine Joe Non-para Urinal Screen with Block is designed to provide effective sanitation for urinals. This biodegradable screen contains no para or acids and features a black and blue dye indicator for easy visibility. Its water-soluble design cleans and deodorizes for up to 30 days, while offering a natural odor-counteractant with a spice scent. Each box contains 12 screens, making it a practical choice for maintaining cleanliness in restrooms.