Stanley Quencher Iceflow Lumin - New Generation Thermos Protector with Straw, Thick Silicone Base

You can comfortably use it in your thermos and camping bottles with a base diameter of 7.5 - 8 cm.

enhances durability and is ideal for long-term use. It prevents scratches on the base and eliminates the possibility of the product slipping, preventing it from falling.