AICMEI 4 Replacement Lids for Stainless Steel Tumbler Travel Cup, Leak and Spill resistant Lid for 30 OZ or Others of Insulated Mugs With an Inside Diameter of 3.7-3.74 Inches

• UNIQUE DESIGN：Switch sliding cover design, easy to use. The hole on the top of the cup can be used directly or with a straw. The sliding cover design prevents you from touching your nose while drinking water.The color of our lid is very beautiful.There are 2 black and 2 red,you can enjoy the lid in a different color from others.
• SPILL PROOF: Our set is a combination of 4 spill-proof lids. This lid of ours is leak-proof and spill-proof design. It is a great companion to the cup for those who drive. When your thermos is filled with your favorite drink and covered with our lid, placed in your car where you put the water cup, it will cover the cup very steadily and will not let the liquid spill. I'm sure those who drive will love it.
• SIZE: If you are worried about whether this 3.7 inch diameter lid will fit your 30 ounce mug perfectly, then please don't worry. You measure the internal distance and external width of the mug before you buy, refer to the specific measurements on our pictures, if the measured size is the same, then this lid of ours will cover your mug perfectly.
• A set of 4, you can use one for yourself, the others can be given to your loved ones, or your dear family and friends, or you can keep it as a spare. But I think it's perfect for friends who drive, because it has a splash-proof function that keeps the liquid inside the water cup in the car from splashing out. So if you usually have a lot of driving, give it to yourself, or to your friends who drive around.
• SERVIVES: If you have any other questions about our products, you can contact us by email, we do our best to serve you, thank you for your attention.

Attention: The lid size has a top diameter of 9.1 inches and a bottom diameter of 3.7 inches, please understand that there may be an error of approximately 0.02 due to different measurement methods. Thus, this lid can simply replace only the same 850.5 g lid. To avoid buying the wrong size lid, please measure the size of your original lid to see if it is the same size as the one we are selling before purchasing. Thank you. Measurements: you can refer to our video as we measure. The lids are not universal. Please check if the size of your old lid is the same as the size of the lids we sell before purchasing to avoid buying an unsuitable lid. Not all 850g lids are the same. Please check the size carefully and buy carefully. Size: 850g Colour: black and red. Our product design has advantages: 1. It is allowed to sip directly or use straw. 2. Open/closed sliding closure, more convenient to use. 3. The ergonomics of the airflow maintains the same air pressure. 4. Easy to remove lid 5. Thicken the sealing ring to reduce leakage. 6. Prevent water from overflowing when the cup is turned over, keeping the drink hot for a long time. 7. The clear crystal lid makes it easy to see the drink at any time and prevents dust.