These rivet fasteners are made of nylon material， suitable for car use.Car's good accessory， commonly used for fitting side skirts， bumpers and other trim.These clips are suitable for firmly holding anything within a fit diameter hole.They can be used on buses， trains， planes， truck， caravans and cars.This is Non-OEM Product! Specifics:Size:7x20mm6x15mm6.3x15.5mm9x18mm5.5x18mm7.5x20mm10x20mmBrand: NYLON CHRISTMAS TREE Carpet Floor Mat ClipsProduct Name: Plastic RivetOther Part Number: Screw Fender Body Door Trim Panel HoodMaterial: PlasticInterchange Part Number: Under Engine Splash Guard Rivet Fastener ClipsColor: Black Package Includes: 50pcs Plastic Rivets Retainer Clips