Description Manufacturer part #:24.85H Technical Description Features American Metric Anodized Aluminum Track 1.22/0/47 in 31 mm Length 59 in 1.5 mm Width 1 1/4 in 31 mm Height 3/4 in 19 mm Hole Diameter 1/4 in 6 mm Hole Spacing 3 15/16 in 100 mm