Choice of OEM-quality UHMW or special low-friction graphite slides available for most modelsFabricated for exact fit and easy installationAll necessary holes are pre-drilledChoice of black or colored slides for most modelsGraphite slides are made of UHMW with graphite additives to provide less friction and more speedSold eachNOTE: Slide profiles 23 and 24 are the same except profile 24 is thicker; profile 23 is 3/8" thick and profile 24 is 7/16" thick.DESIGNER: THIS NOTE IS NOW VERY IMPORTANT. PLEASE MAKE IT LARGER THAN NORMAL NOTE SIZE. IT GOES RIGHT ABOVE THE FIRST APP CHART...COULD EVEN BE CENTERED OR BOXED TO CALL MORE ATTENTION TO IT.NOTE: MANY SLIDES COME LONGER THAN NEEDED AND MUST BE CUT TO LENGTH.