-No batteries or external power source needed.
<br />-Without key and card.
<br />-100% mechanical operation and water proof.
<br />-Unlock by push-button code.
<br />-Change your code whenever you like.
<br />-Fit door thickness:1-3/8 inch to 2-3/8 inch(35mm to 60mm)
<br />-Fit both Left-Hand & Right-Hand door types.
<br />-Backset Latch: 2-3/8 inch(60mm)
<br />-Include complete installation hardware and Manual.
<br />-Color: Silvery
<br />-Packing: 1set/box