One-piece traction device for shoes or boots delivers tenacious grip and stability. * 8 rugged, heat-treated carbon steel studs for tenacious grip & stability * Stretchable rubber for fit and easy on/off; Flexible to -40°F (-40°c) * M (5-8), L (8-11), XL (11-14), see size chart for all countries * Replacement studs sold separately (See 6301)