· Ideal 20oz Skinny Tumbler lid replacement: Suitable for 20oz flat mouth (non threaded) straight body skinny tumblers and comes in a convenient set of 4, perfect for daily use at home, in the office, or while traveling.Before you make a purchase, please confirm if the lid size matches your cup.· Safe and Durable Materials: The upgraded sliding lid is made from high-strength, break-resistant materials, easily handling daily use and accidental drops. Suitable for both hot and cold drinks, it offers excellent heat resistance and stability. Whether for coffee lovers, commuters, or outdoor adventurers, this tumbler lid ensures long-term reliable performance.· Smooth Drinking Anytime, Anywhere: These tumbler replacement lids are not only straw-friendly but also feature an optimized vent hole that ensures a steady, splash-free flow. Whether you're sipping your morning coffee or staying hydrated on the go, this versatile cup lid meets your needs.· Hygienic and Easy to Clean: The silicone seal can be easily removed for cleaning, catering to your needs for hygiene and convenience.· Extending Function and Value: These tumbler lids can replace damaged original lids to extend the lifespan of your cup while restoring the functionality of personalized, commemorative, or gift mugs, combining practicality with sentimental value.