Highlights Lead-free borosilicate glass tumblers engineered for clarity, durability, and wide temperature resistance. Crafted with Precision The KAMMAK lead-free borosilicate glass tumbler features a crystal-clear body with exceptional clarity and heat resistance, easily handling sudden temperature changes. Its high hardness resists scratches, maintaining a mirror-like finish even after prolonged use. Pure & Protective Materials Made with pure materials, the glass withstands acid and alkali erosion, helping safeguard your health while preserving a smooth, lustrous surface over time. Engineered Details Constructed with high-temperature resistant materials, it endures thermal shocks from -20°C to 150°C, allowing you to pour hot water directly after removing it from the refrigerator without worrying about cracking. The minimalist cylindrical design with a stable base ensures secure placement, while its low UV transmittance makes it suitable for storing light-sensitive substances. Lead-Free Borosilicate Glass Scratch-Resistant Surface Thermal Shock -20°C to 150°C Low UV Transmittance Buy on Amazon
