Features:
The sliding closure can open and close for direct sipping or for a straw.
With a black silicone o-ring around the base, can help to cover the cup tightly.
The air hole on top of slider is designed according to airflow ergonomics, helping to reduce splashing.

Specifications:
Color: blue
Material: AS plastic
Diameter: 3.94 inch

Package includes:
2 * Spill proof and splash resistant tumbler lids

Tips:
Easy to clean and dishwasher safe, but avoid using it in microwave.
The air hole is designed to keep a same air pressure inside and outside the tumbler, making it convenient for you to drink water.
This lid can help with accidental tips and spills but not guarantee no leaks if inverted for a long time.
You had better open the straw hole when it is filled with hot drink in case of the lip pop up for high pressure.

• Fit for Yeti, RTIC, Ozark Trails and most 30 ounces tumblers
• Help to reduce spill while turning over the tumbler and keep your drink insulated
• Sliding closure with straw friendly opening
• The tumbler lid is made from AS crystal clear plastic; BPA free
• Package includes: 2 * spill proof and splash resistant tumbler lids

Fit for Yeti, RTIC, Ozark Trails and most 30 ounces tumblerseBoot