The Kenworth W900 National Seating Series 2000 Ultra Ride 10 Inch Seat Base Adapters in PO Blue are a practical and beneficial addition to your Kenworth W900 truck. Available in chrome or billet aluminum, these adapters provide a 10-inch extension for a perfect fit with the Kenworth W900 National Seating Series 2000 Ultra Ride Seats. Each adapter is sold individually, ensuring a customized solution for your seating needs. Enhance your comfort and convenience with these high-quality seat base adapters.