Luigi Bormioli Talismano Set of 6 Hi Ball Glasses, 570ml Luigi Bormioli - Talismano. Made with Luigi Bormioli s latest innovation, SON.hyx. SON.hyx is a high-tech blown lead-free crystal glass that does not contain any heavy metals. This glass present outstanding chemical, optical and mechanical properties. It is strong with a higher resistance of the rim, a higher resistance to impacts, and a higher resistance to twisting the stems. To make it even stronger, the glass was reinforced with titanium. The permanent anti abrasion treatment on the glass’ stems hardens the glass surface increasing its resistance to abrasions, which are responsible for the fragility of the stems during daily usage. SON.hyx Crystal - Made with SON.hyx, a high-tech blown lead-free crystal glass that does not contain any heavy metals. Ultra Durable - Improved with a permanent anti-abrasion treatment applied directly to the glass’ stems to increase resistance to breakages. Dishwasher Safe - Fully resistant to washing cycles. The high quality means the glass won t alter in transparency and brilliance. Features A soft tapered design with a crisp, contemporary feel This charming design enhances any setting with its clean lines SON.hyx technology for sparkling clear crystal glass that’s ultra strong.