Nail jars are used to store different kinds of cosmetics. They can be used to store nail powder, polish, or acrylic nail liquid. Some of them come with a lid that keeps out contaminants. Others are used to store nail lotion. You can experiment with various kinds of jars to find the ones that will work best for you.

Nail jars come in a variety of different sizes and designs. Some are mechanical, while others are hydraulic. The difference between these two is that the hydraulic jar has a hydraulic mechanism and the mechanical one uses a hammer. Both types of jars are designed to strike up or down, and they have different functions.