This Cup is Made of Food Grade Environmental Protection Material, Double Wall Vacuum Vacuum Flask. Eco Friendly, Lead-free, Rust Proof, Leak Proof, Sweat Free, & Non Condensing. This Water Bottle Allows You to Drink More Water, & the Water Cup has Good Insulation & Cooling Function. It Can Keep Hot or Cold Drink Warm for a Long Time, Making It Very Suitable for Outdoor, Sports & Other Scenarios That Require Long-term Drink. Suitable for Any Sports Activity, Work, School, & Any Scene in Daily Life. Our Water Bottle Design has Anti Leakage & Anti Leakage Functions, & We Can Also Customize the Logo for Easy Use & Travel. Minimum Quantity: 250