Only Premium grade, body-safe glass is used in Crystal Delights glass toys, and the range uses annealed (hardened) Borosilicate glass. This ensures the surface of the plug or dildo is perfectly smooth, friction-free, and non-porous. Not only does this mean they are easy and safe to use, but this makes them easy to care for too. When using glass toys, ensure you are using them as intended and are not pushing beyond their limits of use. Glass is a natural material that is free from phthalates and toxins and provides the premium quality design you’d want.