The Lightspeed 2 stainless steel runner holds a sharp edge and delivers an unparalleled edging capability. Easy to sharpen on all machines. QUICK CHANGE MAINTENANCE - single post located in the inside heel makes it extremely easy to change the steel, while not having the hardware exposed. The LS2 steel comes with a 9ft radius and Improved hardware that provides optimal attachment for the TUUK LS2 holder sold in a Pair. PLEASE NOTE: Fits ONLY Tuuk Lightspeed & Lightspeed 2 holders.