Sargent Art Square pastel is smooth, richly pigmented color that is perfect for all your fine work. Square pastels that lay down smooth, richly pigmented color for all your fine work. - Ages: 3 years and up. - Blends easily for outstanding effects. - Ideal for everyone from beginners to experienced artists. - Excellent for scrapbooking or aged effects on paper. - User friendly formula allows superior color control. - Each comes in an easy-to-use lift lid box. - Square chalk sticks size 25" x 3/8".