Plastic boot covers are an important part of your farm's biosecurity plan. Keep extra pairs available for visitors, service personnel and personal use when visiting high risk areas to prevent the spread of disease pathogens.6" blue polypropylene boot cover. Used to minimize the transfer and spread of disease pathogens, animal waste and mud/dirt. Elastic opening provides snug fit over shoes and boots. Disposable, intended for single use applications. One size fits all.150 covers (75 pairs) per pack.