One-Piece Ice traction Device: delivers tenacious grip and stability for shoes and boots.FEATURES rugged, heat-treated carbon steel studs for tenacious grip & stabilityStretchable rubber for fit and easy on/offFlexible to -40°F (-40°C)M (5-8), L (8-11), XL (11-14), see size chart for all countries#6301 replacement studs sold separately .APPLICATIONS Road Construction, Construction, Roofers, Trades, Installers, Contractors, Delivery/Service,Landscaping, Utilities, Logging, Ice BalletErgodyne