Product Description This universal sliding glass door handle lock kit is constructed from diecast and comes finished in black paint. It features a reversible design for left or right hand installations. The automatic unlatching option prevents accidental lockout. Designed for 1 inch thick doors. Mounting hardware included. From the Manufacturer This handle set is constructed from diecast aluminum and comes painted in black. It is designed to fit 90% of all internally latched doors. It features reversible right or left hand openings and an automatic unlatching option to prevent accidental lockout