WellieSTR Lot Of 50 Permanent Makeup Manual Eyebrow Tattoo Needle Microblading 7 Sloped Needles Safe and durable. Needles are sharp and elastic, make the eyebrow line beautiful. Material: 316L Stainless Steel. Per blade have 7 needles. Diameter of each needle: 0.25mm. Thickness: 0.5mm. 50pcs per lot