Donut erasers add a fun touch to your desktop. The 12 count assorted erasers come in a reusable plastic mason jar that can be used as desktop storage. U Brands donut erasers bring a touch of fun to your desktop. The 12 count erasers are assorted in a variety of colours that bring life to any project. The reusable plastic mason jar can be used to store your erasers, pens, pencils and other office accessories.