adds an extra measure of safety and confidence when using canes and crutches on icy surfaces. The 5-prong design provides traction and stability in slick wintry conditions. Flips up conveniently when not in use, and removes easily when the warmer weather returns. Best for people with limited mobility, or for those who use canes or crutches for support when walking. Installs quickly with 2 included screws. Stainless steel prongs.