This wooden puzzle lock requires you to figure out the correct "combination". In order to open the lock, you must turn the circular dials to the correct positions in order to allow the acrylic slider to move to the bottom and open the lock.
Made in laser-cut wood and acrylic by Siebenstein-Spiele. Based in Munster, Germany, Siebenstein-Spiele was founded in 1992. Although the company is mainly known for board games, Siebenstein-Spiele also makes many wooden puzzles, several of which have been designed by company founder Jürgen Reiche.