The FA4391WC.2BC Gioconda Artist White Chalk Blocks 2-Pack is a set of round white chalk blocks perfect for sketching and drawing. Made of plastic and weighing just 0.03 pounds, this pack includes 2 chalk blocks with a smooth grip, suitable for kids and adults alike. The white chalk has a 2mm and above line size, ideal for creating detailed artwork. These chalk blocks are ambidextrous and come in a convenient blister card packaging, making them a great addition to any artist's collection.