Waterproof led temperature water bottle - Waterproof led temperature display bottle that can be completely submerged in water. Just touch the top and the temperature of the liquid will show on the screen. SAFE & HEALTHY MATERIAL - The inner wall is made of 304 grade food grade stainless steel and the outer case is made of high quality 204 stainless steel. It has been approved by the FDA for your drinking needs. MULTIPURPOSE - The Vacuum Insulated Tumbler with a detachable tea strainer. You can soak the scattered tea leaves in the cup and use the filter as a compartment when drinking. You can also remove the filter directly and load the beverage you want to drink. EASY TO CARRY - The 500ml capacity is perfect for carrying around, whether it's at outdoor sports, office, beach, school, picnic, yoga, hiking, camping, cycling, running, walking, gym, fitness, etc. It slides easily into the car cup holder the bicycle rack or the bag on both sides of the backpack. Wherever you can enjoy the pleasure of the travel tumbler. (Note: keep a proper amount of liquid to prevent it from overflowing. Material - Stainless Steel 2. Capacity - 500 ML 3. Leak Proof and BPA Free.