NetiX Universal Rack Mounting Adjustable Sliding Rail Single – Will Fit 2U,4U 3U and 5U Rack Mounts, Stop-Latch, Lock Chassis In Extended Position For Easy Access. Includes 1 X Ball Bearing Sliding Rails, 2 X L-Brackets, Nuts And Screws For Mounting For Rail And Bracket. Colour Black , Brown Box , 6 Months Limited Warranty