Tortoise Shell term is used to describe the Pattern Made in Resins and Plastics of Amber Brown Swirls and Colors .This is the premium end of the market product. There should be no sharp edges. We only use the best material for our products which are both strong and durable. Why compromise your choice. We hope you like our selection. Approximately 3 cm; 1.2 Inch Wide in the middle of the headband. Hard to find these Good Quality Headband at any Drug Store at these Competitive Prices. Made with Soft and Flexible Material Cellulose Acetate that has Everlasting Luxurious finish. High Quality ; Made in France.