attaches by 3/8" screw - 1/4" screw closed length 47.5 color black leg cross section round leg sections 5 legs tube diameter 29.2 . 24.8 . 20.4 . 16 . 11.6 mm load capacity 5 material carbon fiber legs. aluminium column + magnesium. aluminium castings maximum height 160.5 minimum height 47.5 weight 0.60