This is for one Seat bottom foam pad cushion.
It has anchors for seat cover attachment.
Original part from seat foam manufacturer

To install this seat foam you have to remove your old seat upholstery cover. No modifications re needed to install. Installation is rather a simple process.
THESE ARE ORIGINAL REPLACEMENT SEAT FOAM CUSHIONS THAT ARE
SUITABLE FOR W907 AND W910 SPRINTER VAN FRONT SEATS
DRIVERS' OR PASSENGERS SIDE
This will fit the following models:
2023 Mercedes-Benz Sprinter 1500 Base 2.0L L4 - Gas
2022 Mercedes-Benz Sprinter 1500 Base 2.0L L4 - Gas
2022 Mercedes-Benz Sprinter 2500 Base 2.0L L4 - Gas, 2.1L L4 - Diesel, 3.0L V6 - Diesel
2022 Mercedes-Benz Sprinter 3500 Base 2.1L L4 - Diesel, 3.0L V6 - Diesel
2022 Mercedes-Benz Sprinter 3500 XD Base 2.1L L4 - Diesel, 3.0L V6 - Diesel

2021 Mercedes-Benz Sprinter 1500 Base 2.0L L4 - Gas
2021 Mercedes-Benz Sprinter 2500 Base 2.0L L4 - Gas, 3.0L V6 - Diesel
2021 Mercedes-Benz Sprinter 3500 Base 3.0L V6 - Diesel
2020 Mercedes-Benz Sprinter 1500 Base 2.0L L4 - Gas
2020 Mercedes-Benz Sprinter 2500 Base 2.0L L4 - Gas, 3.0L V6 - Diesel
2020 Mercedes-Benz Sprinter 3500 Base 3.0L V6 - Diesel
2020 Mercedes-Benz Sprinter 3500 XD Base 3.0L V6 - Diesel
2019 Mercedes-Benz Sprinter 1500 Base 2.0L L4 - Gas
2019 Mercedes-Benz Sprinter 2500 Base 2.0L L4 - Gas, 3.0L V6 - Diesel
2019 Mercedes-Benz Sprinter 3500 Base 3.0L V6 - Diesel
2019 Mercedes-Benz Sprinter 3500 XD Base 3.0L V6 - Diesel