Decked (Cargoglide) CG1500XL-8048. Stored indoors and never insalled. New hardware is included.

80"x48"

https://realtruck.com/p/cargoglide-cg1500xl-truck-bed-cargo-slide/crg-cg1500xl-8048/

1,500 lb. capacity

Up to 100% extension

Made from steel & aluminum, ¾” marine-type plywood, & an impact-resistant thermoplastic topsheet

Low-profile tray height

12" lock increments

There are some minor scratches, as seen in photos, but functions perfectly.