@jackofneedles: What is a Round Liner? | Tattoo Needle Basics – Lesson 1 If you're a beginner tattoo artist or learning how to tattoo, understanding round liner needles (RL) is one of the most important fundamentals. In this lesson I break down: • what a round liner needle is • how the needle grouping works • what round liners are used for in tattooing • how to read a 9RL cartridge • and the voltage beginners usually run liners at This series is designed to help beginner tattoo artists, apprentices, and people learning tattoo fundamentals understand tattoo equipment properly. Save this lesson so you can come back to it later. #selftaughttattooartist #beginertattooartist #tattooapprentice #learntotattoo #tattooeducation