Each tube contains 3 fl. oz. of joint compound - Joint compount provides better finish for painting than spackle. Easier Container - small, easy to handle. Collapsible aluminum foil design keeps air out, prevents bubbles. Opens quickly and is easily resealable (3 year shelf life). Includes integrated 2" putty knife, no other tools required for small repairs. Hangs from peg hook. Innovative - Easier to use than spackle. Compound thickness optimized for easy spreading and faster drying time.