36 Pieces silicon tips cover for 6 mm stainless steel straws for Yeti 590ml or 890ml tumbler, 4 colours Colourful and sufficient silicone tips and covers: The package comes with 12 sets of silicone tips covers, 36 pieces in total.1 Set includes 1 piece tip and 2 pieces silicone covers.There are 4 colours, green, red, yellow, blue, 3 sets per colour, which means you get sufficient quantity to use and the different colours make it easy to distinguish them while drinking.Wide usage: With 6 mm in inner diameter, the silicone tip gets a suitable size for 20 or 890mls cups or tumblers like Yeti and spill proof lids.What a good choose for drinking cocktails, juice, coffee, tea, water, soda and other beverage.Ease noise design: There is no need to worry the metal straws will hurt your mouth.Our colourful silicone straw tips will be safe to use and protect your teeth and lips from hot or cold beverages.The products are also designed to help you to keep metal straws stay in place when drinking, and not to suffer the irritating rattling noises any more.Specifications: Materials: silicone Colour: green, blue, yellow and red Dimensions: Inner diameter of tip: 6 mm Length of the tip: 30 mm Inner diameter of straw covers: 6 mm Package includes: 12 Pieces silicone straw tips 24 Pieces silicone straw covers Please note: These are compatible spare parts, the manufacturers' names and part numbers have been mentioned for reference purposes only.