Package Included:0.16MM 14U needle blade x 50pcs (no included pen) Diameter: 0.16 mm Fine NeedleMicroblading will create the most natural looking, realistic hair strokes in eyebrow permanent makeup with the use of Manual Microstroking, also known as Eyebrow Embroidery. This technique allows to create crisp, fine hair strokes that fill in thin brows, brows with bald spots, total brow reconstruction and even alopecia. Highest quality microblading blades, made of medical grade stainless steel. Each microblade sterilized by Gamma Rays and carefully packed into sealed blister packaging. Microblade is disposable and for single use only! Microblades must be used by professionals only! ISO 9002 Certified Also please have a look at my other microblading needles, we have big variety: 7,9,11,12,14,18U,19,21