for Regular Mouth Jars: Designed to fit jars with a 60 mm inner diameter and 70 mm outer diameter, these lids are ideal for jars with a height of 130 mm. The lids feature a 10 mm hole diameter, complemented by 8 mm silicone rings, making them perfect for straws less than 6 mm in diameter. and Safe Material: Crafted from high-quality stainless steel, these straw lids are not only reusable and but also rustproof and leakproof. They are dishwasher safe, ensuring easy cleaning and maintenance, and are robust enough to withstand daily use without breaking. Versatile Utility: These lids are perfectly sized for 8 oz to 16 oz regular mouth jars, making them ideal for both adults and children. The straw length is optimized for enjoying thicker shakes and other beverages comfortably without being too wide for smaller mouths. Multipurpose Use: Beyond drinking beverages like coffee, tea, and juice, these lids can also as effective storage covers. Their versatility extends to various applications, making them a practical addition to any kitchen or craft room. Extensive Applications: Ideal for a wide range of uses, from parties to craft projects. These lids can be used to create DIY candles, soap pumps, torches, and much more. They are compatible with both Ball and wide jars, featuring a specially designed friction zone for a secure, non-slip grip. Color:Black Material:Stainless Steel Package Contents: 20 * cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.