Crayon Rocks are simply the best coloring tool for young children! They are vibrantly colored and make beautifully textured art work similar to oil pastels. These all natural soy wax crayons are made from USA grown soybeans and colored with natural mineral powders sourced locally. Designed by a special education teacher for her students to strengthen the tripod grip muscles in young children thus preparing fingers and hands for handwriting. The shape allows small fingers to apply color in large, wide strokes. Recommended by occupational therapists and preschool teachers around the world to develop fine motor skills. Crayon Rocks are non-toxic and conform to ASTM D 4236, EN71 and CPSIA. They are made in rural Kentucky, U.S.A. by American women. Although the size of the crayon may seem small, there is actually more wax than in a major brand stick crayon, plus there is no annoying paper to remove! Our crayon size and shape was very carefully selected for the developmental needs of young children ages 3 to 9. WARNING: Choking Hazard. Not for children under 3 years. Use with appropriate supervision. 64 crayons now in 8 primary colors: red, green, egg yolk yellow, blue, orange, purple, brown, black); 16 colors: the 8 primaries plus their half-tones: pink, grass, sunshine yellow, sky blue, peach, light purple, tan, gray; and 32 colors that include the previous 16 plus Fall and Winter colors: strawberry cream, honey wheat, white, navy, coral, coffee, turquoise, aqua, cranberry, magenta, tree bark, autumn green, rose red, periwinkle, pumpkin spice, and spruce in 1 very sturdy kraft slide cover box per order. 95% of materials used are renewable and compostable! In fact, except for the electricity, everything we use in the manufacturing of our crayons is either reused, recycled or composted for garden soil.Crayon size is 1 1/4 by 3/4 inch; box is 6 x 6 x 2.Encourage children to press down firmly with the crayon flat and use fore- and upper arm muscles to rub large swaths of color onto the paper. American Made in Hestand, KY Crayon Rocks is a rural Kentucky based manufacturer of ergonomically correct crayons for young children. Invented for her students by Barbara Lee, a veteran special education teacher, they are still made and hand packed in her hilltop workshop. Her company combines the best design in crayons for fine motor development in young children with the best practices in ecologically sustainable materials and production.