The 30 oz Lid gaskets replacement compatible with Yeti Rambler 30 oz Tumbler, 14 oz Mug and 35 oz Straw Mug. Fits the same size cup lids of these brands: Beast, Chillout, Fire & Ice, Hogg, Ozark Trail, Mossy Oak, and Rtic (Arctic) travel mugs. Please measure the size of the original lid before purchasing to confirm which size you need. Double-ridge silicone gaskets create a good seal on the lid of the cup to prevent leaks. Made of high quality silicone, odorless, durable and dishwasher safe. The gasket can replace the previous bad and dirty gasket. Easy to replace, come with a tweezer to press the gasket into the edge of the lid easily, which can also be used to remove old gasket. Package includes 6 pack lid seals and 1 tweezer. Note: Not compatible with Bubba, Contigo, Hydro Flask, Klean Kanteen, Tervis, or Thermos. The 30 oz Lid gaskets replacement compatible with Yeti Rambler 30 oz Tumbler, 14 oz Mug and 35 oz Straw Mug. Fits the same size cup lids of these brands: Beast, Chillout, Fire & Ice, Hogg, Ozark Trail, Mossy Oak, and Rtic (Arctic) travel mugs. Please measure the size of the original lid before purchasing to confirm which size you need.