1、304 stainless steel environmentally-friendly telescopic straw, easy to carry, avoiding pollution and waste caused by disposable straw. 2、Straw is reusable, which can replace the plastic and paper straw used daily. Reduce stress and pollution on the environment, Save the earth. 3、The Stainless Steel straw is telescopic, which is perfectly compatible with 12-40oz cups. The straw can be packed into in the samll jar and there is an attachable keychain option, You can tie the case to your belt or bag, You can carry it with you wherever you go. 4、The Reusable Straw is made from the best material, premium food-grade 304 stainless steel.Our Metal Straw is perfect for you to enjoy any cold or hot drink. 5、Due to the extra long telescopic scrub brush, you can clean the inside of the reusable straws from top to bottom easily.  1* straw 1* cleaning brush 1* outer casing 1* carabiner (random color) Material: 304 stainless steel Straw: three outer diameter 7MM, 8MM, 9MM, close length 100MM, pull length 230MM Brush: OD 3.6MM, close length 110MM, pull length 240MM Scope: hotel, family, coffee shop, drinks, milk tea, outdoor camping