?? Size: The nozzle size is about 0.039inch/1mm ?? Material: Medical grade stainless steel, sturdy and durable ?? Features: Individually packaged, easy to use; Is sealed, very clean and hygienic ?? The needle tip is very sharp, so you can reduce the pain when you have pierced ears, nose rings, lip rings, belly button rings, and tongue nails. ?? Purpose: Our puncture needles are very versatile. They can be used for ear piercing, nose ring, belly button ring, lip ring, tongue nail, etc.