Chest
From The Blockheads Wiki
A chest is a block that when you select it and do "Use Chest" it opens up a storage space that you can put items in. It is crafted at a Craft Bench with one (1) wood.
A chest has sixteen storage slots, each able to hold a stack of one type of item. Different stacks may be of the same or different items.
Chests can be placed inside baskets or other chests. They continue to carry their contents, and can be stacked with chests that are empty or have differing contents. When a chest is later placed and used, its contents at the time of removal are available again. There is no way of identifying the contents of a chest before using it, so there is no guarantee that placing a chest from a stack will get you the chest you want.