Door Knob Lock Combination Child Proof Door Knob Cover Lock Out Device for Bedroom, Bathroom, Faucet, Water Gas Valve, Temporary Door Handle Lock Prevents Access to Keyhole Dementia Elderly

When my son was 4 I had to put a lock on the outside of his door, now that he’s 17 I put looks on the inside of all the door. This is the one we use now, I leave it on the default combo https://a.co/d/061ffs87