Prime-Line Products C 1095 Sliding Glass Door Handle Set, 3-1/2 in., Diecast & Wood, Black,  Hook Style, Internal Lock This handle set is used to replace damaged or missing internal locking, hook style handle sets on sliding glass doors with 1 inch thick door frames This item has a 3-1/2 in. hole center spacing Finished in a black painted color Constructed of diecast materials and a wooden handle