This listing is for one set of seat cover upholstery.

Seat bottom cover. 

This will cover ONE SEAT.

To install this upholstery set you have to remove your old seat covers. No modifications needed to install. Installation is rather simple process.
THESE ARE ORIGINAL REPLACEMENT COVERS THAT ARE MADE TO FIT
W906 SPRINTER VAN FRONT SEATS
DRIVERS OR PASSENGERS SIDE
This will fit the following models:
Mercedes Benz sprinter crafter 2006-2016