* SLIDING DOOR hardware kit comes with 1 top roller, 2 soft close mechanism, 1 top door track, 2 end caps, 2 bottom wheels, 1 bottom door track, and 1 floor guide (Door is not Included). * CONCEALED Wall-mounted sliding system featuring an invisible front track, with no lower track on the floor. Its distinctive hardware and concealed track give the impression of a floating door. * WEIGHT SUPPORT suitable for doors with thickness ranging from 1-1/4" to 1-3/4" and able to support wood doors weighing up to 176 lb (80 kg). * DOOR WIDTH - The 38" track fit opening width 30"~34 ; The 42" Track fit opening width 34"~36"; The 48" track fit opening width 40"~44".