STIGMA Bugpin 7RL Tattoo Needle Cartridges — 50-Pack E.O.-Sterilized 7 Round Liner with Membrane Safety

STIGMA #10 (7RL) bugpin disposable round liner cartridges are a 50-piece, membrane-protected pack of E.O.-sterilized tattoo needles engineered for fine-line and detail work.

These STIGMA EN05-series cartridges combine a bugpin 7RL configuration with a protective membrane to reduce backflow and a rubber-sealed load to keep ink where it belongs. Crafted from 304 surgical stainless steel and medical-grade plastic, the cartridges come blister-packed and sterilized by ethylene oxide (E.O.) for single-use convenience. Designed by artists, they are compatible with standard cartridge-style tattoo machines and grips to streamline studio workflow.

How do these cartridges perform for fine-line and detail work?

The 7RL (7 Round Liner) bugpin grouping offers tighter clustering and a smaller profile than standard liners, making it well suited to crisp lines, intricate lettering, and small-scale detail. The sharpened slope of the round tips helps deliver controlled ink flow with each pass.

• Bugpin 7RL configuration for compact, precise lines
• Slope-engineered round tips to improve line consistency
• Suitable for lettering, micro details, and delicate shading edges

What safety and cleanliness features are included?

Each cartridge is individually blister-packaged and E.O.-sterilized, providing a sterile single-use solution straight from the pouch. A soft rubber loading system plus an internal membrane reduces the chance of ink or fluid backflow into the machine, supporting safer handling practices.

• E.O. sterilization in individual blister packs
• Internal plastic membrane prevents ink backflow
• Rubber-sealed loading system for cleaner operation

Will these cartridges fit my machine and how easy are they to use?

STIGMA EN05 cartridges are built to fit industry-standard cartridge tattoo machines and compatible grips, so swapping needles mid-session is fast and tool-neutral. The cartridges’ ergonomic plastic housings provide straightforward insertion and reliable seating when paired with most cartridge systems.

• Compatible with most standard cartridge tattoo machines and grips
• Ergonomic housing for secure, tool-free insertion
• Disposable single-use format for quick changeovers

What materials and build quality can I expect?

The needles use 304 surgical stainless steel and medical-grade plastic components for consistent performance across the pack. Manufacturing tolerances focus on repeatable tip geometry, and the cartridges are E.O.-sterilized and blister-sealed to preserve integrity until use.

• 304 surgical stainless steel needles for consistent point geometry
• Medical-grade plastic housing for durability and fit
• Blister-sealed packaging that maintains sterility until opened

Who is this for: Tattoo artists who need a reliable value pack of fine-line cartridges will appreciate the STIGMA #10 (7RL) bugpin set. It’s aimed at professionals and experienced apprentices who want tightly clustered round liners with membrane protection, easy machine compatibility, and the convenience of 50 individually sterilized disposable cartridges for busy sessions or stocked studios.