The mason jar is made of plastic, a single wall design, a jar, straw, and lid available in your choice of several colors. a 24-ounce capacity, your business logo, advertising slogan, or custom artwork screen printed.The Plastic Mason Jar makes a wonderful giveaway item at promotional events where you're handing out free drinks.You have the option of mixing and matching colors between jar, lid, and straw, meaning that they don't all have to be the same color. Jar, lid, and straw are packaged separately, unassembled.