Crayon Rocks Sixteen Colours packed in a red velvet bag.16 Summer Colours: red, pink, blue, sky, green, grass, dark yellow, light yellow, orange, peach, purple, light purple, brown, tan, black, grey.Simply the best colouring tool for children! Crayon Rocks have vibrant colours and make beautifully textured art work.All natural soy wax crayons made from USA grown soybeans and coloured with natural mineral powders.Designed to strengthen the tripod grip muscles, preparing fingers and hands for handwriting.The shape allows small fingers to colour in large, wide strokes creating pictures rich in colour.Used by occupational therapists to develop fine motor skills.Non-toxic and conforms to ASTM D 4236.Made in USA.Length of each crayon is approx 3.2cm (Images on photos may appear larger).WARNING: Choking Hazard.Not for children under .