--100% pure raw material
--easily installed&removed
-- recycling use
-- lots of sizes & types are available/totally support customized 
--good wear resistance/long working life

--good ice antiskid

All factors of the  list are absolutely important on the winter tire studs, but it is not essential.

The essential of   the winter tire studs is not only non-skid, but also the winter tire studs could give the driver a really comfortable environment to drive in the winter.