Replacement cap for water bottles that fits 2.28 inch diameter openings and is compatible with commonly sized bottles including 14 oz, 18 oz, 40 oz, and 64 oz. The wide-mouth design provides a comfortable drinking experience. Key benefits - Wide compatibility: fits bottles with a 2.28 inch mouth, covering 14 oz, 18 oz, 40 oz, and 64 oz sizes for a versatile upgrade. - Easy drinking: wide-mouth design enables comfortable filling and sipping at leisure. - Spill-proof on the go: engineered to reduce spills, making it practical to carry and drink while traveling. - Large ring grip: robust, oversized ring grip enhances portability and makes handling and attachment easier. - Durable and stylish: made from food-grade, durable, safe PP material with a smooth shell that adds a touch of elegance to your bottle. Durability and materials - Material: food-grade, durable, safe PP. - Finish: smooth shell that improves both durability and visual appeal. Use scenarios - Gym and workouts: swap in this replacement cap for easy one-handed drinking during high-intensity routines. - Outdoor activities: ideal for hiking, camping, or long walks where spill-resistant, reliable hydration is important. - Daily commute and office: convenient to carry in a bag or cup holder, ensuring quick hydration at work or on the go.