Stair Dust Corners are installed in the angle between tread, riser, and wall to add a decorative touch, and prevent dust build up in the corners.Ours come with a nail centering tool, to help with installation. See more items from our Hooks And Brackets category. Specifications Item # 6395 Finish Shown Unlacquered Polished Brass Height 2.75" Width 2.75" Price As Shown Base Total $3.00 Grand Total $3.00