To provide a safety travel assurance device which can be attached and detached with ease, can be friendly for the environment and can run on the frozen road surface safely by using recycled material because many conventional anti-skid auxiliary implements, are troublesome when attached and detached and tend to be used as they are even when they are unnecessary in conventional safety travel assurance device.

This anti-skid device comprises a device comprising a fixing rubber band 2 attached to a body 1 to be covered on a tire and a threading instrument to thread this rubber band into a wheel. An anti-skid body comprises a metal pin attached to the place where the projected part of a groove on the tire is cut off into a shape of a fan, shaved and is machined into a shape of a net.