⭐️ Free Shipping ⭐️ Available for Immediate Purchase Although listed as unused, this item has only been opened. It has not been used, but it is essentially new and unused. I purchased this, but it didn't fit, so I'm selling it. I only tried it on with the bag, so I haven't taken it out of the bag. 【Heat Retention Function】 Lid specifically for vacuum insulated tumblers. When attached, it significantly extends the duration of heat and cold retention, preventing drinks from cooling down quickly or ice from melting. ※Note: Lid only, tumbler not included. 【Excellent Sealing】 Excellent sealing prevents dust from entering the cup and eliminates the worry of water spilling if the cup is knocked over. It's very convenient for carrying around when you're out and about. 【Transparent Material】 The lid is made of food-grade, BPA-free plastic, which is harmless, tasteless, and highly safe. The transparent material allows you to clearly see the amount and condition of the water inside the cup.