About the product SET OF 9 METAL STRAWS: You get 9pcs Extra Long Rainbow drinking straws (4 bent + 5 straight + 2 cleaning brushes + 5 silicone tips + 1 pouch). They are FDA approved, plastic free, BPA free, no metal aftertaste. Join the plastic free movement. DURABLE AND REUSABLE MATERIAL: Tiblue drinking straws are made of premium food grade 304 stainless steel, the surface of our metal straws for drinks are polished, rust and scratch proof, eco-friendly, easier to get the silicone tips on/off than others. One metal straw can last for years and replace hundreds of plastic straws. FIT FOR YETI TUMBLER AND ALL SIZE TUMBLERS: the stainless steel straws are 10.5" and 8.5" with their diameter being0.48” (12mm), 0.32" (8mm),0.24” (6mm), perfect for 20oz&30oz Yeti tumbler or RTIC SIC Ozark Trail Tumblers . you can use these metal straws for drink milk, coffee, ice, shipping cocktail, cold beverage ect. EASY TO CLEAN AND CARRY: the reusable straws, brush and silicone tips packed in to pouch, you can enjoy it wherever you are, such as family gathering, cocktail party, picnic, etc. You can clean the inside of the recyclable straws from top to bottom easily with extra long scrub brush after drinking and they are safe for Dishwasher. (Please wash straws before using) 100% SATISFACTION GUARANTEE: Silicone tips on Rainbow Straws keep your lips from getting too cold or too hot and protect your teeth and lips from chipping. If you are not satisfied with our straws at the time you receive it, feel free to contact us for replacement, or refund.