Helios Red Label Box of 20

3 Round Liner - 35mm diameter, long taper Helios Cartridge Needles are the perfect choice for the professional artist. Helios needles are made with a safety membrane to prevent the back flow of ink into your tube or machine to give you an ultra-smooth feel with just the right tension. Compatible with ALL cartridge system machines and grips 100% EO Gas Sterilized and individually packaged Needles made of 316 medical grade stainless steel Medical grade plastic tips 20 Needles per box Over 60 configurations available