Back to Back Installation: With each purchase, we will provide you with a pair of door handles for the interior and exterior of a single door. For double doors, you need two pairs. And our door handles do not lock, you can choose to use with door locks/latches Quick and Easy Assembly: Thanks to the detailed instructions and comes with the necessary hardware and tools, it can be assembled easily. Just drill two holes in the door panel, insert the bolts and tighten the door handle, and you can use it MULTI-PURPOSE DOOR PUTTER: Can be used not only for wooden doors, glass doors, sliding doors, metal doors, shower doors, sliding barn doors, front doors, iron doors, etc., but also for fiberglass doors, bank doors, public doors or pocket doors Sturdy Stainless Steel Handle: Made of 304 stainless steel alloy material, it has strong resistance to , and deformation, and can permanently extend the service life without loosening. It can maintain the best condition even if placed outdoors in the rain or sunshine YOUR SATISFACTION GUARANTEED -Our brand values are Quality, Trust and Integrity, Customer satisfaction has always been our top priority, all of our products come with a 100% satisfaction guarantee, Manufacturer: ADGCFKOP