Gray 300ml water bottle with a lock function, convenient for carrying. The following is quoted from the official website: Brand: DEAN & DELUCA Capacity: 300 ml Color: Gunmetal (Gray) Features: Manual Lock Function: Yes Product Dimensions: 5.8 width x 20 height cm Mug Bottle A stainless steel mug bottle with high sealing properties and excellent heat retention and cold insulation, convenient for carrying. Easy-to-open and easy-to-drink shape with a one-touch stopper. * When closing, please raise the safety lock (it may feel a little stiff). * The safety lock stopper moves up and down slightly. Please be aware of this beforehand.