Small space? Get the same powerful odor counteractant as the DefenderPro sock, but in a compact size! Our industrial strength DEFENDER PRO SOCKS hold a powerful and effective concentrated odor neutralizer. Each DEFENDER PRO SOCK will provide deodorization for 30 to 45 days. It is specially designed to neutralize odors in sewers, elevator shafts, dumpster areas, garbage collection areas, industrial plants, water treatment facilities or anywhere that strong undesirable odors are present.