Gamegenic Catan Hexadocks Base Set - Rules of Play says:

The CATAN® Hexadocks will keep all your wooden player pieces safely stored and perfectly organized. With this smart wooden parts holder, you are ready to play right out of the box. No need to count if you have the right number of player pieces anymore! The slots are organized for easy access to your roads, settlements, and cities. The Hexadocks look the part, matching the CATAN® color scheme. They are made from an extremely durable, quality material. The transparent cover protects parts from falling out and displays the contents clearly. The Base Set contains 4 docks, one, for each player of the CATAN® base game.