These stainless runners fit the Bauer Lightspeed, Lightspeed2, and Lightspeed 2.1 holders only. They do not fit the Tuuk+, or the Lightspeed Edge Holders with the trigger release.  These runners are a few mm longer at the ends than regular LS2's. STEP is manufactured by a Canadian companies with many years of blade manufacturing experience.  They use the highest quality materials and have mastered a proprietary process that delivers the best replacement steel on the market. This aftermarket steel is superior to stock Bauer steel.  They holds edges longer and are less likely to break. Step runners are also 10% higher for longer sharpening life and better edge retention in turns. Price is per pair and includes initial sharpening.   Radius not included.
 
Note: We are a Custom Radius shop and  only sell steel to customers who are getting a Custom Radius. If you just want steel we suggest you get them from another online store.