COMPATIBLE WITH BRŪMATE ALL ERA & STANLEY TUMBLERS: Designed exclusively for BrüMate All Era and Stanley tumblers, these magnetic straw caps ensure a snug, leak-resistant fit tailored to your go-to drinkware. MAGNETIC DESIGN: Each straw cap features a built-in magnet that securely attaches to your tumbler lid when not in use, eliminating the risk of misplacement and keeping it within easy reach for quick sips. HIGH QUALITY SILICONE: The heat-resistant material safely withstands both hot and cold beverages, while the smooth, non-porous surface stays hygienic and is easy to clean. EASY TO CLEAN AND MAINTAIN: The smooth silicone surface is dishwasher-safe, enabling quick, hassle-free cleaning so you can focus on enjoying your favorite beverages. STYLISH AND PRACTICAL ACCESSORY: Combine modern flair with everyday utility—these caps enhance your tumbler’s functionality while adding a sleek, contemporary aesthetic to your routine. 2 Pack Magnetic Straw Caps Compatible with BrüMate All Era and Stanley Tumblers, Silicone Straw Caps Toppers Compatible with Stanley Accessories, for All Cups with a Straw Diameter of 9-12mm