HAT GA concealed Thumb Turning Knob 1 finish:PS, SS, AB, AC, SB,TC, ... : 120*50mm,150*50mm 3 material: SS HAT GA concealed Thumb Turning KnobDiscreption: 1 item no: NX0032 size: 120*50mm,150 ... integrity trade, OEM & ODM also welcome. HAT GA Oval concealed Thumb Turning Knob