Hajistraw Can be used in various situations such as childcare, nursing care, and illness. Please only purchase if you understand that this is a home-stored item (*^_^*) The following is a quote↓↓↓ - Brand: AGY - Product Name: Handy Straw - Color: Transparent - Material: Plastic - Not for use with: Beverages - Intended Use: For bottles - Features: Safe design Hajistraw Doesn't leak, doesn't spill For 350ml to 500ml plastic bottles Doesn't spill even when drinking while lying down Doesn't spill even if the bottle is tipped over Stops immediately when you let go, and doesn't spill You can drink without spilling with one hand and one touch, whether lying down or sitting, without moving your head. Even if you accidentally let go while drinking, the automatic closing device will activate and prevent leakage. It won't leak even if you lay it horizontally on your bedside before or after drinking. Even when children are drinking, it won't spill if you tip it over unless you pull the lever. The straw can be easily removed from the device and washed.