The product features a 4-1/8" diameter opening, designed to work with 30 oz. tumblers and other large bottles and cups. It is made from durable neoprene rubber, which provides a secure grip and ensures long-lasting performance.

The 4-1/8" diameter opening allows for easy filling and pouring, making it suitable for use with a wide range of container sizes. The neoprene rubber construction offers a sturdy and reliable grip, preventing slippage and ensuring the product's durability. This feature is particularly useful for outdoor activities, such as hiking or camping, where a secure hold on your beverage container is essential.

The combination of the generous opening size and the robust neoprene material ensures that this product is well-equipped to handle a variety of large tumblers, bottles, and cups. Whether you're enjoying a refreshing drink on a hot day or need a reliable way to stay hydrated during your outdoor adventures, this product is designed to meet your needs.

The durable construction of the neoprene rubber not only provides a secure grip but also helps to protect your containers from wear and tear. This is especially important for those who are active and on-the-go, as their equipment is often subjected to various environmental conditions and potential accidents.

In summary, this product offers a practical and reliable solution for anyone who requires a versatile and long-lasting way to handle their larger beverage containers. The 4-1/8" diameter opening and the neoprene rubber construction work together to create a product that is both functional and durable, making it a valuable addition to your everyday or outdoor gear.

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