Slide Lock Lid for Yeti Rambler Tumbler 30 Ounce &ndash; Also Fits The Berg &ndash; RTIC & SIC Cups & Most Other Models In 30 OZ Sizes Quick-Action Slider For One-Handed Use. Perfect Lid For 30 OZ Yeti Rambler, The Berg, RTIC, SIC Cups & More. Tumbler To Lid Seal Is Designed With Our Premium Double Ridge Gasket. BPA Free and Constructed To Last With Shatter Resistant Material Chosen For Its Strength And Durability. Important Note: As with ALL Slide Lock Lids for Tumblers, the sip hole cover does not provide a watertight seal. If tipped or inverted, lid will not prevent leakage from the sip hole but does provide better spill and splash resistance than the stock open hole lid. Also provides less air intrusion, resulting in longer temperature control for extended duration of hot & cold contents. 100% Money Back Lifetime Guarantee  We Stand By Our Lid, So If It Does Not Perform As Expected On Your 30 Ounce Yeti Rambler, The Berg, RTIC or SIC Cups Simply Let Us Know For A Full Refund. BEWARE OF COUNTERFEITS! Be sure that Key Largo Traders appears as the seller when purchasing. We are the only authorized seller of this product. Our lifetime product warranty is not available if purchasing from any other seller, which is a counterfeit product shipped directly from overseas at a much lower price with a typical shipping time of 30 days.