60-613 Ergotron Neo-Flex mounting kit

Ergotron Neo-Flex mounting kit.Horizontal = 100 mm (min.) to 400 mm (max.)Vertical = 100 mm (min.) to 300 mm (max.)Profile off the wall = 1.9″ (49 mm)UL certified and listed to UL Standard 1678. This product has been tested to hold four times its maximum load capacity per UL standard (do NOT exceed listed weight capacity in actual use)