ICER'S XT™ are the best anti-skid detachable safety soles in the world. These safety soles are designed for extreme difficult conditions and for situations that demand performance far beyond normal use. This package includes a complete personal kit to re-stud the soles if they wear out (tool included). You should regularly examine the soles and replace any dull studs when necessary. ICERS are manufactured in Canada by ICERS Inc.