Raxxess RKRL-14 are a pair of 14U rack rails.
RKRL rack rail (14 space rack)
11-gauge steel full hole rack rail; punched and tapped for 10-32 screws. Side mounting holdes punched every space. Available in all sizes, 2 to 45 space, black baked enamel. Sold in pairs. No clogged threads ever.