Freshen restrooms without the fuss, with a simple, air soluble urinal screen with a block. Absolutely unaffected by water, this odor neutralizer completely evaporates and imparts a fresh, clean scent wherever placed. Provides long-lasting freshness, for 75-90 days. Deodorizing ability superior to para blocks. Excellent for use in areas where para products are prohibited. Deodorizer Type: Urinal Block Screen; Scent: Camphor; Capacity (Weight): 0.4 lb; Color(s): White.