Come and see our amazing products. Made of Alloy, practical and durable. It can avoid direct contact between hands and pollutant in the air. When you need to open the door,Stretches over door knob, press the buttons and turn the door knob easily. Slips on quickly with no tools required.No drill and tools need,no harm to the door. It is small in size, which is convenient and fast. you can take it with you. The price includes the shipping cost to ca. Pls confirm with us about the packing info, stock color and exact production time before placing your order