Professional Tattoo Grip Diameter:16mm 18mm 20mm 22mm 25mm 27mm 32mm . Material:316 stainless steel. Length:50mm 60mm 48mm Engineered by professional engineers ,material can be alloy or others. Contact us if you need more details on Professional Tattoo Grip. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Tattoo Grip 30mm、Good Tattoo Grip. If these products fail to match your need, please contact us and we would like to provide relevant information.