This is from their website:
- Soy crayons are made from renewable soybeans grown in the USA and are colored with natural mineral powders. Conforms to ASTM D 4236.
- Designed to strengthen the tripod grip muscles, preparing fingers and hands for handwriting skills
- Specially shaped to allow small fingers to color in large, wide strokes, promoting confidence in creating kids' art.
- Used by occupational therapists and teachers of children with special needs to develop fine motor skills and provide handwriting practice