Wormhole Tattoo Cartridge Needles 50pc Assorted 12mm Standard RL — 3RL–11RL round liners, anti-backflow, sterile-sealed

Wormhole Tattoo Cartridge Needles 50pcs is an assorted set of round liner (RL) cartridges — 3RL, 5RL, 7RL, 9RL and 11RL — supplied in individually sealed, anti-backflow housings for reliable lining work.

This kit collects five common liner sizes used by tattoo artists who need a ready mix of cartridges for fine detail, lining, and shading edges. Each sterile-sealed cartridge combines stainless steel needles with durable PVC housings and a rubber anti-backflow membrane to help protect machines and maintain fluid control. The light-grey tube improves needle visibility so you can watch ink pickup and placement more clearly during sessions.

How do these cartridges reduce contamination risk?

Every cartridge in the pack is individually sealed and disposable, which minimizes cross-contamination between clients and simplifies cleanup. The rubber band-loaded design and internal plastic membrane add a barrier that limits ink travel into the grip or machine.

• Individually sealed cartridges for single use
• Rubber-loaded housing with plastic membrane prevents ink backflow
• Disposable stainless steel needles reduce sterilization needs

What sizes are included and when should I use each?

The set includes ten cartridges each of 3RL, 5RL, 7RL, 9RL and 11RL — a range that covers fine lines through broader lining and some tight shading. Smaller RLs (3RL–5RL) suit delicate outlines and single-needle-style strokes, while larger RLs (7RL–11RL) handle bolder outlines and faster coverage on thicker lines.

• 3RL: fine details and crisp single-pass lines
• 5RL: standard lining for small to medium designs
• 7RL–11RL: heavier lines, bold outlines, and faster work

Are these cartridges compatible with my tattoo machine?

Wormhole Tattoo cartridges follow a standard 12mm diameter (12 Standard RL) and are compatible with most rotary and coil cartridge-style machines on the market. The universal fitting and easy click-in connection make swapping sizes quick during sessions.

• 12mm standard housing fits most cartridge machines
• Click-in style for fast installation and removal
• Light-grey tube improves visibility while working

What materials and construction details support performance?

Needles are stainless steel for sharpness and corrosion resistance, while the cartridge body is molded PVC for durability and a clear view of ink pickup. The specially designed needle edges help retain and deliver ink consistently while the sealed packaging preserves sterility until use.

• Stainless steel needles for consistent penetration and durability
• PVC housing with clear visibility and robust construction
• Sealed single-use packing to maintain sterility

Who is this for: This 50-piece mixed pack is suited for professional tattoo artists, apprentices building a starter supply, and studios that need a versatile rotation of liner cartridges. It’s particularly helpful for artists who want a compact, ready-to-use assortment of common RL sizes, reliable anti-backflow protection, and individually sealed disposables for client safety and efficient workflow.