
Leak-Proof Slider Lid, BPA-Free Replacement Tumbler Lid, Fits for 20 Oz and 30 Oz Stainless Steel Tumblers. Universal Compatibility: Fits tumblers with 3.25/3.74 inch inner diameter including Yetti, Atlin, Beast, and more. 100% Spill-Proof Design: Features double-sealing technology and thicken sealing ring to prevent leaks. BPA-Free & Food Grade: Made of durable crystal clear AS plastic, safe for hot and cold beverages. Straw-Friendly Opening: Center hole fits 6-8mm straws; removable plug allows 10mm straws for smoothies. Customizable Options: Offers full, minor, and flexible customization from samples or designs. Dishwasher Safe: Easy to clean and maintain with professional design for direct sipping. Ergonomic Sliding Lid: Flip part fixes in any position to prevent nose contact and improve airflow. 30-Day Satisfaction Guarantee: 100% refund or exchange available if not satisfied with the purchase.