How much does this cost to the nearest dollar?

Putco Boss Locker Side Rails - Fits Chevy Silverado 1500 & GMC Sierra 1500 5'8 Bed
An oversized Locker Rail with 2.5 tubes and castings. Solid die cast construction on bed rail ends allows for extreme tie down strength. Easy no drill installation via stake pockets. Stainless tubes are chromed to 44 hour CASS and tubes and rails are backed by a lifetime warranty. Fits 2007 Chevy Silverado 1500, 2007 GMC Sierra 1500, Chevy Silverado 1500, GMC Sierra 1500, 5'8'' Bed, New Body Rail Design 2-1/2 Custom Fit These rails are specifically designed to fit each year, make, and model with the correct length of rails, hardware,

Price is $548.00

Price: $547.98