Features: Material: Made of food-grade PP material durable and non-different perfect fit for the cup good insulation effect. Sealing Rings: Made of quality rubber without BPA the silicone lid seals are leak-proof and heat insulated containing no odor serviceable enough for you to use for a long time. Nice Sealing Effect: these replacement cup Cover are designed to create a good sealing effect between the lid and the tumbler keeping your food clean and keep fresh convenient to use easy to prevent leakage. Practicality: Replacement insulation cup lid stopper is practical easy to clean easy to store does not take up too much space light weight. Customer Service: With customer satisfaction as our first priority we offer a satisfaction service for all of our merchandise. If you have any problems please contact us in time. We will give you replies as soon as possible. Specification: Size: 5.2cm 4.5cm Material: PP Notes:Please allow slight tolerances in size due to manual measurement and lighting in photography may result in a difference in color than in real. includes: 1*Insulated Water Bottle Cover "