(Use w/ Contour Bracket) Outside Dimensions: 3.485" x 3.230", Total Height: 1.000", Corner Radius: 3/8" Nylon back plate

Recommended

3″ x 2″ Contour T-Rail Flat Bracket Kit -(2pc)

3″ x 2″ Contour Stair Bracket Kit -(2pc)

45 Degree Small Adapter