I have tried the fineline needle on the swallow bird tattoo that i have made lately and i have to say they are very precise. They are very sharp and can hold pretty big amount of ink so u dont have to refill every line :) I love the size of single dot while i am shading coz using them i can make really good gradient. Thanks Pepax for making those :D
PEPAX Lance S Fineline Tattoo Cartridge Needles Round Liner (Box of 20)









