The Anodized Aluminum Neoprene Door Shoe is an aluminum U channel to mount on the bottom of doors. The channel is 1 inch deep with a 1/2 inch neoprene seal on the bottom. Fits over the bottom of 1-3/4 inch thick doors. Ships in 36 or 48 inch lengths and comes with #6 x 3/4 inch stainless steel screws.