Made of Tritan material, with glass-like transparency and near-glass density, good gloss. Tritan material has excellent thermoforming properties, impact resistance, and withstand pressure to help prevent cracking. Excellent weather resistance and prevent yellowing. Specifications: Product size: height 10cm/3.93″ widest 9.5cm/3.74″ cup mouth 6.8cm/2.67″ cup bottom 5.5cm/2.16″ Product material: Tritan