These are difficult to find these days as TCX discontinued them. Glad I found them at STG the ones on Ebay are at a premium. The metal lasts a little longer than the plastic fare of my street boots. Small gripe from me is I wish they extended a little more into the sole underneath the pinky toes....any boot for that matter. RS-2EVO, My favorite boot is no longer available , these toe sliders will help preserve them a little longer.