PartsSquare 30pcs Fender Liner Fastener Rivet Push Clips Retainer for BMW Z4 Z3 X1 850CSi 850Ci 840i 840Ci Hybrid B7 Alpina 535xi 535iX 535i 535dX 535d 530xi 528xi 528iX Package Content : 30pcs Plastic Rivets Fastener Application: Rocker Panel, Door Sill Strip, Trim Panel Retainer (Direct replacement, no need to modify) Size (Head/Stem Length/Stem Diameter/Fit Hole): 12x9/13.3/6.5x4mm; 0.47x0.35/0.52/0.26x0.16 inch Item condition: Brand New. Material: Plastic, Nylon