Linear Bearing, Standard Linear, Overall Height 1 7/8 in, Overall Length 2 13/16 in, Overall Width 4 in, Housing Material Aluminum, Mounting Hole Diameter 21/64 in, Anodized, Silver, System of Measurement Inch, 15 Series, Double Flanged, For Number of Slots 3, Standard, Flange Thickness 3/8 in, Pad Material UHMW Plastic, Compatible Brand and Series 15 Series