Easy to put on and take off, easy to adjust the degree of seal, comfortable and stay in place. With stainless steel, the tips and chain system provide excellent traction on a variety of frozen surfaces. The strategic positioning of the spikes ensures even weight distribution for long lasting comfort and durability. Convenient to carry: Store in the case to take anywhere Suitable for winter snow and ice road riding, anti-slip, mountaineering, hiking, fishing wear to avoid falling. Size: M