THE STANDARD SLIDING DOOR GLIDE PROFILE HAS A PAD KEY THAT SLIDES INTO A T-SLOT; IT IS COMMONLY USED TO CREATE A TOP RAIL SLIDING OR BI-FOLD DOOR. IT IS IDEAL WHEN USED WITH THE ECONOMY SLIDING DOOR GLIDE AS A BOTTOM MOUNT. THE STANDARD SLIDING DOOR GLIDE BOLTS ONTO THE PROFILE END AND FREELY ROTATES AS THE DOOR PIVOTS. IT IS MADE OF UHMW POLYETHYLENE AND REQUIRES NO LUBRICATION. THE STANDARD LENGTH OF THE GLIDE PROFILE IS 145" AND CAN BE CUT TO LENGTH AS A STANDARD MACHINING SERVICE.