Rook & Knight Lock Picks go hand in hand with the King and Queen picks. These two picks are designed to mimic the keyways of locks with a much larger variation between the high/low pins. In some situations your picks accidentally oversets the low pin that is in front of the high pin and these picks help escape that! Tips on use: Slowly slide the pick and once it is set into the keyway try different heights and depths. A must have for your collection of lock picks!