Brand Name: SHINY HANDLES Product Description: * Product name: Crystal Interior Door Knobs with Lock Bedroom/Bathroom, round shape. * Finish: Matte Black. * Material:zinc alloy,genuine crystal glass(clear,NOT FADE). * Door thickness: fits all doors 1-3/8" to 1-3/4" thick. * Backset:2-3/8",2-3/4". Functions And Applications: * Function:Privacy function. * Applications: The privacy/bed/bath function is ideal for bathrooms, bedrooms, and any room where privacy is needed.