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