Description: It is made of stainless steel, which is safer and healthier, environmentally friendly, recyclable. Retractable, detachable, High-grade, durable, non-flammable, non-fade, easy to clean, thermal insulation and heat transfer Every straw come with 1 stainless steel cleaning brush which is long enough to wash the whole straw. With metal storage case, Easy to store and carry for outdoor picnics, camping, hiking, travelling, home and office use. Great for beverage, sipping cocktail, coffee, juice, water, etc. hot or cold, for tumbler, glass, mug, cup, etc Specification: Material: Stainless Steel 5mm Diameter Mouth: Folding Length: 135mm / Unfold Length: 220mm 10mm Diameter Mouth: Folding Length: 125mm / Unfold Length: 210mm Cleaning Brush Length: approx.80mm Storage Bag Size: approx. 100x80x20mm Size Chart: Material: Stainless Steel Folding Length: 100mm/3.9 inch Unfold Length: 235mm/9.3 inch Diameter: 7-9mm/0.3-0.4 inch Case size: Approx.127 x 17mm/ 5 x 0.7 inch Package Includes: 1 Piece Metal Reusable Straws 1 Piece Cleaning Brush 1 Piece Metal Case Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.