Unique blend of soybean oil and brighter, more intense pigments make these crayons brighter, smoother and less flaky than ordinary wax crayons. Blend them together for an even more extensive colour palette! Nontoxic. This 8-colour Master Pack™ of 800 is a great value for classrooms, camps, or any place that uses large volumes of crayons. Unique storage box with carrying handle is a convenient way to keep crayons together in one solid, refillable container. 3-1/2" x 5/16".