PERFECT REPLACEMENT FOR OEM- the retainer clips are made of high quality plastic, have a good fit and are of equal quality to the originals. THE SAME SIZE & SHAPE AS ORIGINAL- Top Head Diameter: 0.55 inch / 14mmBottom Head dia:18mm/0.7 inches ; Stem length: 15mm/0.6 inches & fits: 9mm/0.36 inches hole. UNIVERSAL FIT- Replaces for BMW 51-41-1-973-500, 51411973500 ,These universal plastic clips will fit on most of auto parts with 9mm hole, hold your parts very tightly. VEHICLE FITMENT- for BMW E34 525i 530i 535i 540i M5; E36 318i 318ic 318is 318ti 320i 323ic 323is 325i 325ic 325is 328i 328ic 328is M3; E38 740i 740iL 750i 750iL; E39 525i 528i 530i 540i M5; E46 323Ci 323i 325Ci 325i 325xi 328Ci 328i 330Ci 330i 330xi E36 M3; E39 M5; E53 E70 X5; E36 Z3; E52 Z8. PACKAGE INCLUDE- 50(+/-2%) PCS Door Panel Clips.