C&Berg are proud to present to you their 30 Oz replacement rubber seals which fit all vacuum stainless-steel cups! Our 3-pack durable and flexible rubber gaskets will not only impress you with their quality but also offer SPECIAL BENEFITS. MAKE YOUR OLD LIDS BRAND NEW AGAIN! FEATURES: ✔ Perfect match with any 30 oz tumbler. ✔Suits best with Yeti, RTIC, Ozark Trail, and SIC. ✔Premium quality rubber that guaranteed durability. ✔Can be easily replaced. All you need to do is roll off the old rubber lid seal and replace with the new one. ✔ These rubber gaskets are really easy to clean. ✔Save your money. No need to buy new lids when the replacement rubber lids give your tumbler a new look. Stop using damaged or leaking lids. Stop spoiling your clothes because of leaking flasks. Invest in replacement rubber lids and enjoy the beverages in your vacuum tumbler. Ideal for EVERY KIND of stainless-steel tumbler for the size of 30 oz & diameter of 3.5 INCHES. The Best Possible Seal - We have used super-grade strength silicone to give you a durable product. Just make sure that the flat side faces towards the lid, pull it swiftly, and glide your fingers around it to prevent leakage. C&Berg lids, makes the PERFECT gift for your tumbler! Gift it for your friends and family and they will thank you. If you choose us you are already benefiting in major proportions, then why wait?