Description: Superior quality and complies with international cosmetology and requirements Sterilization certified by Gamma Ray, complies with Government Sterilization Guidelines Needle is made of high grade stainless steel. Individually packed. For disposable using only Suits for fog manual pen more stability,less vibration,Excellent stability. Needles are sharp and elastic, making the eyebrow line beautiful. Specification: Material: 316L Stainless Steel. Diameter of each needle: approx 0.25mm. Thickness: approx 0.61mm. Package Includes: 1* 50 Pieces Needles