Features:Quality material: Straw sleeve is made of high Non-BPA rubber material, safe food grade rubber. Compared with other rubber, durable, environmentally friendly, lightweight and portable, easy to use. Safe and durable, suitable for long time use.Simple design: the silicone straw head cover is scratch-proof, dust-proof, and avoids metal odor. Guard your lips and donand 39 t worry about cracked lips and teeth. If you hate the taste of metal straws, this can help you not touch the straws directly. Both sides can be used as extensions.Easy to use: This straw plug is easy to wear or remove and flexible enough to fit your straw. Simply attach the 7.5mm or 0.3-inch straw to the straw cap to drink straight away, keeping the drink clean and avoiding stains on the lips. (Note: Only applicable to 8mm metal straws, thank you!)Ideal gift: A reusable straw cover is the perfect gift for a girl, lady, friendand 39 s daughters, wife, mother, sisterand 39 s birthday, Christmas, Motherand 39 s Day, Valentineand 39 s Day, Halloween. The lovely flower suction pipette nib cover is your best choice.Packing and service: 12 Insert black rubber straw tip. We concentrate on providing you with high quality dust-proof straw hat tools and for your beauty. We will always support our products with a worry-free service commitment.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementMaterial:Silicone,StainlessSize:6 or 8mm