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Amazon.com: Sequential Adapter Gearshift Pad for Logitech G25 G27 G29 G920 Gear Shifter Modification Kit : Video Games
STICK TYPE Knob Mod Logitech G25 G27 G29 G920 G923 Driving Force Shift Gear | eBay
Amazon.com: Obokidly DIY Sequential Shifter Knob mod Upgrade Modification Steering Wheels Accessories Parts Set for Logitech Shifter Gear Shift Knob for G29/G25/G27 for PXN A10 Compatible with PC for ATS & ETS2