Healthfix® Car Seat Wedge Cushion | Orthopedic Memory Foam Car Seat Wedge Pillow for Driving Comfort & Posture | Seat Riser Cushion for Short Drivers & Back Pain Relief (Firm (185-300 lbs)) Car Wedge Cushion Firm (185-300 lbs) is up for auction in Automotive. The current bid is $2.00, 92% below the $25.49 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.