These guard rails are one of the quickest and easiest ways to install protective guard railing to prevent damage to your expensive machinery, office walls, mezzanines, electrical boxes, water mains and most importantly personnel, from forklifts and other mobile equipment. This Build-A-Rail system can be one, two, or even three rails high by simply stacking the rail units one on top of the other to reach your desired protection. Available in 4, 6, 8, and 10 foot lengths. It can also be coupled together to create the desired length, and utilizes corner collars allowing you to make 90 degree corners with ease.