STIGMA Disposable Tattoo Cartridges 3RL Round Liner 50-Pack — Sterile Membrane, 304 Stainless

STIGMA #12 (3RL) disposable round liner cartridges are sterile, membrane-protected tattoo needles designed for precise lining and consistent ink flow in standard cartridge machines.

Built for working artists who need reliable single-use supplies, the EN05 series combines surgical-grade stainless steel with a medical-grade plastic housing and an internal membrane to prevent backflow. Each cartridge arrives E.O. sterilized in individual blister packaging, ready to drop into compatible rotary or coil cartridge grips. This 50-piece super value pack focuses on fine detail work with a 3RL (three round liner) grouping that’s popular for crisp lines, lettering, and small-scale shading.

How do these cartridges protect against ink backflow and contamination?

Each STIGMA EN05 cartridge includes a molded plastic membrane that separates the needle chamber from the machine tube, minimizing the chance of ink or bodily fluids entering the grip. The disposable single-use format plus E.O. sterilization reduces cross-contamination risk compared with reusable needles.

• Internal membrane barrier prevents fluid intrusion into the machine.
• E.O. (ethylene oxide) sterilized blister packs for immediate sterile use.
• Single-use cartridges eliminate need for autoclaving and reduce infection vectors.

What needle materials and construction should I expect from the EN05 3RL?

STIGMA cartridges use 304 surgical stainless steel needles and FDA-equivalent medical-grade plastics for the housing. The round liner grouping is formed with a slight slope at the tip to deliver sharp, consistent punctures suitable for detailed linework.

• 304 surgical stainless steel needles for corrosion resistance and rigidity.
• Medical-grade plastic housing engineered for snap-fit compatibility.
• Rounded tip geometry optimized for smooth ink delivery and controlled penetration.

Will these cartridges work with my machine and what practical benefits do they offer?

EN05 cartridges are made to be compatible with most standard cartridge-style tattoo machines and grips from leading brands. They aim to speed workflow by allowing quick swaps, consistent needle grouping, and reduced downtime for cleaning or sterilization.

• Compatible with standard cartridge systems — rotary and most coil machines.
• Quick-change design reduces setup time between clients or sessions.
• Rubber-band loaded cartridges improve needle stability and reduce vibration.

How does the 3RL needle grouping affect my line quality and shading options?

A 3RL grouping places three needles tightly together to create thin, precise lines while still holding enough ink for short strokes and small fill work. Artists use 3RL for crisp outlines, delicate lettering, and controlled micro-details rather than broad shading.

• Ideal for crisp, narrow lines and fine details.
• Sufficient ink capacity for short shading passes and tight work.
• Consistent point spacing yields predictable, repeatable line quality.

Who is this for: The STIGMA EN05-50-1203RL 50-piece pack suits professional tattoo artists, apprentices, and studios that prefer cartridge convenience and sterile single-use supplies. It’s especially useful for artists focused on linework, lettering, portrait micro-details, and those wanting standardized needle performance across sessions. Choose this pack if you need a dependable supply of 3RL round liners with safety membranes and surgical-grade materials for daily studio use.