Fiber failures are a thing of the past. Our patented FiberLok(TM) quick "remove and replace" modular construction is both robust and user friendly. With the simple removal of a set screw you can remove and replace your fibers in minutes to your color preference making customization a simple and enjoyable process. Say goodbye to the "melt and mushroom" approach with our FiberLok(TM) TSF Customization Kit. Available in two sizes: 10.3mm and 8.3mm*10.3mm is compatible with all TSF products (excluding 003BE003BG & 003BE004BG & 050BE052BG) 8.3mm is only compatible with SKU&';s: 003BE003BG & 003BE004BG & 050BE052BG The FiberLok(TM) TSF Customization Kit includes: 1 Red Front Fiber 1 Green Front Fiber 1 Orange Front Fiber 1 Black Front Fiber 1 White Front Fiber 2 Red Rear Fibers 2 Green Rear Fibers 2 Black Rear Fibers 2 White Rear Fibers 3 M3x3mm Set Screws 1 M3x4mm Set Screw 1 Glock Front Set Screw 1 Allen Key