Premium Materials: Made from quality silicone, the straw covers are washable and reusable. The bow charms are crafted from premium hardware and durable alloy chains for a distinctive look | Compatible with Stanley Cup Accessories: Compatible with stanley 30 & 40 oz tumblers, these reusable bow straw toppers are crafted for straws with a 0.4-inch (10 mm) diameter. The bow charm accessories measure 4.7 inches, offering an ideal fit | What’s Included: Receive 4PCS bow straw covers and 2PCS bow charm chains for compatible with stanley cup straw cover. Personalize your tumbler with these stylish accessories to avoid mix-ups and make your compatible with stanley straw cover unique | Functional Use: Securely attach the straw toppers for stanley cups to prevent them from falling off and keep your compatible with stanley tumbler straw clean while adding flair to your cup | Great Gift: Lightweight and portable, these compatible with stanley straw toppers with bow charms are ideal for outdoor activities like hiking and camping. A thoughtful gift for friends, family, and loved ones on special occasions like birthdays, and holidays