Amazon.com : BABORUI 2 Size Dust Corners for Stairs, Clear No Trace Dust Corners for Stairs Drawer Furniture, Anti-Dirty Stair Corner Dust Guards for Stairs Dust-Proof : Baby
New Orleans Style Stair Dust Corners - Midcentury - Staircase - Houston - by CJM Custom Homes | Houzz IE
Stair dust corners introduced at the end of the 19th century to make sweeping easier. They keep dust from accumulating in the corners : r/Damnthatsinteresting
20PCS Corner Dust Guard for Steps Dust Proof Guard Stair - Etsy Finland