Vision Pro 300 Series LCD Arms allow the arrangement of multiple LCD panels in parabolic placement for simultaneous viewing, of up to 8 panels. The angle adjustable crosswing & horizontal adjustable pivot mount, allow you to put different size panels in various configurations using one or two-levels with single or double poles. The Ball Joint Pivot offers individual adjustments of your LCD panels in tilt, swivel, & swing motion for maximum comfort. The attractive die-cast Aluminum body & joint provide superior strength, durability, & the highest quality for commercial applications.