Optimized penetration into the ice:
aggressive teeth bite into the ice with oneand a half rotations, possible with one hand, polished surface enables easy, smooth placement.
Good resistance to pulling out, becausethe tube is designed to deform under severe impact loading.
Hanger with double clip-in point and striking surface for cleaning ice from the tube without damaging the screw
Comes in 4 sizes: 21, 17, 13 and 10cm; with weights of 184, 164, 146 and 128 grams respectively