Size:400 milliliters | Color Name:Blue Key Features: 400 ML Capacity Keeps Drinks Hot Or Cold For 24 Hours Insulated Steel Flask With A Unique Locking Lid And Sipper 100% Rust Free Steel Fabricated Inside And Outside In 18/8 Quality Stainless SteelMilton Insulated Steel Bottles Are A Part Of The Thermosteel Range. Its Unique Temperature Retention Mechanism Keeps Your Beverages Hot Or Cold For 24 Hours. This Bottle Is Ideal For Users Who Are Active And Constantly On The Go.\n*Keeps drinks hot and cold for 24 hours\n*Copper coating for better heat retention and 100-percent rust free steel\n*Fabricated inside outside in 18/8 quality stainless steel\n*One year for manufacturing defect and heat retention\n