1>What is the Specifications of Unihubys Piercing Needles IV Catheter Needles? Condition: 100% New Cleaned Piercing Needles Material: 316L High-quality Stainless Steel Package Include: 50PCS Piercing Needles, Each size for 10 PCS Why choose our Piercing Needles IV Catheter Needles? ❤Super sharp, Professional quality cleaned piercing needle and easy to operate, Reduce pain and scarcely no bad effect. ❤Pre-cleaned by E.O.gas, Individual package to ensure 100% clean and safe piercings. ❤Suitable for piercing ear, lip, eyebrow, navel, tongue, nose and other body parts. ❤The catheter needles provides safer and professional piercing. Vacuum pack and needle head is with rubber for protection. ❤High Quality needle catheter with a small tube, removed to facilitate the process of needle punture. ❤At the same time allows jewelry add a curved catheter punture site, cleverly designed and high-end packaging. 2>What's the sizes about Unihubys Piercing Needles? 14G (Red) Gauge : 2.0mm 16G (Grey) Gauge : 1.6mm 18G (Green) Gauge : 1.2mm 20G (Pink) Gauge : 1.0mm 22G(Blue) Gauge : 0.8mm 24G(Yellow)Gauge : 0.7mm Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement,the pictures may not reflect the actual color of the item. Package Including: 10 x Puncture Needle