Material
Crystal Polystyrene
Manufactured and packed for maximum hygiene, crystal polystyrene plastic is of the highest quality. Made with the same material as CD cases. Disposable products will break if dropped onto a hard surface or stood on. Reusable products are fairly tough but will crack if too much pressure is exerted on it. They are made with a thicker, hard walled crystal polystyrene plastic which is glass and dish washer safe in excess of 100 washes and heat resistant to 100 C.