4.5 cm replacement lids for standard vacuum flasks and travel mugs — pack of 2 Key benefits Universal compatibility: 4.5 cm diameter lids designed to fit most standard vacuum flasks and travel mugs, making them an easy replacement for lost or damaged tops. Ready spare or backup: Two lids in the set let you keep an extra on hand or outfit more than one container without buying multiple packs. Keeps beverages at temperature: The lids provide a secure seal that supports the insulation performance of your flask or mug, helping hot drinks stay hot and cold drinks stay cold longer. Compact and lightweight: Small, lowprofile construction makes these lids easy to carry, store, and swap between containers for travel or daily use. Practical and convenient: Simple replacement option that restores functionality to insulated drinkware quickly and affordably. What these lids solve Replaces broken or missing lids so you can continue using your favorite flask or travel mug. Restores a proper seal to maintain beverage temperature and reduce the chance of spills during transport. Provides an onhand spare for commuters, families, or anyone who uses multiple containers. Compatibility and performance details Size: 4.5 cm diameter, compatible with most standard vacuum flasks and travel mugs. Function: Designed to form a secure seal with insulated containers to help preserve beverage temperature and prevent accidental splashes. Design: Lightweight and compact for easy storage and portability. Suggested use scenarios Commuting: a lost lid to keep your morning coffee warm and secure on your way to work. Travel and outdoor use: Pack a spare lid for day trips or weekends away to ensure you always have a sealed container. Home or office: Keep one lid on your desk mug and one in your bag so you don't have to transfer beverages between containers. Includes Two (2) replacement lids, each 4.5 cm in diameter, designed for standard vacuum flasks and travel mugs.