Porsche (78-98) Seat Back Release Knobs +BONUS Clips Brand new OEM Seat Back Release Knobs Bonus: includes clips, very hard to find. Knob part# 911 521 817 00 01C (qty 2) and Clip part# 311 881 247 (qty 2) fits: all 911's thru 1998, and all 944, 924, 928, 968 Easy enough project to replace, fix you seats or renew the look.