Upgrade foot column with 3 fixing screws Usually only 1 or 2 screws on the door handle foot column, we upgraded to 3 screws, more stable, not easy to loosen. Thickened 1.2mm stainless steel door handle The thickened material is not easy to deform or loosen the door handle and can be used for many years. Front Wood Door It can be used as front door handle, entry handle, interior wooden door handle, etc. , Glass Door It can be used as a commercial glass door handle, such as shopping malls, stores and other places with high traffic flow. Sliding Barn Door It can also be installed on barn doors. Shower Door It can also be used as a bathroom handle, because it is 304 material, will not rust. Double Sided Door Handle For Single Door A single purchase (1 unit) of this product provides you with a PAIR of handles for a back-to-back installation. For double door applications, 2 pairs are required. If i want to replace the door handle how to choose the size? You need to measure the distance between the centers of the two holes in the door and choose the door handle that fits your hole to hole distance. How should I choose the quantity? A single purchase (1 unit) of this product provides you with a PAIR of handles for a back-to-back installation. For double door applications, 2 pairs are required.