Bravex Keyless Entry Keypad Deadbolt Door Lock Stainless Steel Sabbath fully mechanical design Shabbos Lock- No Risk of Low Power

30-day satisfaction guarantee, please if there is any quality problem.Does not lock automati, you don’t need to enter pass code again and again. (This can be a pro or con depending on your needs).fully mechanical design ( of low battery), Stainless Steel deadbolt lock, you can use passcode or key to lock/open it, very difficult to pry open.Suitable for standard prepared doors, maximum borehole diameter 2-1/8" (Suitable for wood or metal door thickness of .96inch), both left/right handed and inward/outward opening doors.Combination can be 4-8 digits (no repeats), Please be noted that the combination code can be used in any order.