The 4 monitor arm mount has a manual height adjustment that can be moved vertically along the 28" pole and a tension indicator that allows you to adjust for different monitor weights. Each arm has a maximum weight capacity of 20 lbs. and can support a display up to 32" wide. The assembly can be clamped to the edge of a table or desk and it is available in different colors. Product guaranteed by a 15-year manufacturer's warranty.