MUYI 50Pcs 8mm Plastic Rivet Liner Fender Mud Flaps Bumper Fastener Push-Type Retainer Clips - Black Material: These push type clips are made of high-quality black nylon material, anti-wear and anti-corrosion, would not break or crack easily during use. Product Size (as picture): 19.9mm/0.78inches+11.8mm/0.46inches x 21mm/0.83 inches+8mm/0.31inches x 8mm/0.31inches. Universal: Fit into 8mm / 0.31inches hole, hold your parts very tightly. Great for Door Trim, Car Fender, Bumper, Side Skirt, Radiator Shield, Splash Shield Retainers. Push-type Design:Push in type, rivet post pressure expands legs for fast and tight fastening. Easy to fasten Bumper Fender Flare and Mud Flap. Thank to this design, no need to go to an auto parts store, save time and money. Package include: 50 pcs push type rivet.