Extang Trifecta Toolbox 2.0 - 19 (New Body)-26 Silv/Sierra 1500 8'2" w/o Side Strg Bxs Model 93458 KC108-2094J They are SAE J595 Class

They are SAE J595 Class 1 (if mounted horizontally)

providing the ultimate versatility in cargo management

Includes set of four adjustable dividers

These nerf bars fit Fits Select model years of the Chevrolet Silverado and GMC Sierra 1500

Extang Trifecta Toolbox 2.0 - 19 (New Body)-26 Silv/Sierra 1500 8'2" w/o Side Strg Bxs Model 93458 KC108-2094J They are SAE J595 ClassExtang Trifecta Toolbox 2. 0 19 (New Body) 26 Silv Sierra 1500 8'2" w o Side Strg Bxs Model 93458 Choose Simple: Extang's redesigned soft tri fold cover has a host of new features yet remains the easiest to install and simplest to use. The newly redesigned Trifecta 2. 0 Toolbox Series works with an existing standard 18 20" toolbox. Designed, manufactured and assembled in the USA! Your choice in soft tri fold covers is still simple! Works With Your