Primula Double Wall Mug with Tea Bag Buddy The Primula Tea Bag Buddy is an innovative new item that makes brewing tea fun and easy. Paired with a beautiful 16-ounce glass mug, it is sure to become a tea drinker’s new best friend! The elegant double-wall mug is made of hand-crafted borosilicate glass, and is microwave safe. A large, ergonomic handle makes the mug comfortable and easy to grip, and the crystal clear double-walled borosilicate glass retains heat and freshness longer, while keeping the mug free of condensation. Tea drinker? Meet your new best friend! An innovative tea bag brewing accessory, the Primula Tea Bag Buddy is the solution to tea drinker’s most common issues. Made of 100% Silicone, the Tea Bag Buddy is stain-resistant and microwave and dishwasher safe. The Tea Bag Buddy can be used with your favorite variety of tea bag, and the special slot on the top of the Tea Bag Buddy means that securing the tea bag string has never been easier! Keep your tea hot by using the Tea Bag Buddy as a lid on your favorite mug or pitcher. The 100% silicone Tea Bag Buddy traps heat and steam, insulating the mug to keep your tea brewing at the optimal temperature for full flavor extraction. Use the Tea Bag Buddy to squeeze excess water from hot tea bags keeping your fingers cool and dry! Between brews, hold the used tea bag in the convenient caddy that is created when the Tea Bag Buddy is turned upside down. Instead of a saucer, set wet tea bags directly in the Tea Bag Buddy. There will be no mess, since any excess liquid is collected in the Tea Bag Buddy’s deep reservoir. After use, simply put the Tea Bag Buddy in the dishwasher for quick and easy cleanup! What is Borosilicate Glass? Borosilicate glass is made mainly of silica and boron oxide. Known for having low thermal expansion properties, this type of glass is less subject to thermal stress and shock due to temperature extremes. This means that the glass can go from hot to cold and vice versa without risk of cracking or breaking. Borosilicate glass is a widely used material in cookware and beverageware products due to its heat resistance, durability, and versatility.