CPU mounts vertically or horizontally under worksurface. Adjusts vertically 17 3/4" to 22 1/2" high by 8 3/4" to 10 1/2" wide and horizontally 9" to 13 1/4" high by 17 1/4" to 20" wide. All-steel construction provides maximum security. Includes two combination locks. Color: Gray Material: Steel.BLT66559. 66559. Balt Balt Lockable CPU Holder.