perfect aid for driving on snowy and icy roads. When the road suddenly becomes slippery, the sock is simply mounted on the wheel and provides increased friction on snow and ice. It takes a small amount of storage space and can be re-used. The snow sock is made of a high-tech fibre material, the fibres of which are roughened during use in order to provide optimal grip. The material is both strong and resilient to further increase the wheel's contact area with hard snow and ice. The snow sock is ordered in pairs and is used on the two driving wheels. It can be used on both summer and winter tyres, with or without studs. The sock is also suitable for cars with narrow wheel housings and it does not damage the wheel rims. Part. No. Description 31373758 225/55 R17 31373759 245/45 R18 31373759 255/40 R19 31373759 245/40 R20 31373759 255/35 R20 31373759 245/35 R21