Wormhole Tattoo Cartridge Needles 20pc Mixed 3RL/5RL/5RM/7RM, Disposable Anti-Backflow Sterile Cartridges

Wormhole Tattoo Cartridge Needles are a 20-piece set of mixed-size disposable cartridges (3RL, 5RL, 5RM, 7RM) designed for both lining and shading with anti-backflow protection and wide pen compatibility.

Whether you’re building a tattoo kit or restocking supplies for a busy station, this pack delivers a balanced mix of liners and magnums in sealed, single-use cartridges. Each size is supplied in a set of five cartridges, made from medical-grade stainless steel needles and PVC housing, and packaged individually to preserve sterility until use.

Which needle sizes are included and what are they best for?

This kit contains twenty cartridges split into four sizes: 3RL, 5RL, 5RM, and 7RM — five of each size. The included round liners (RL) are for precise outlines and fine detail; the magnum rounds (RM) are optimized for smooth shading and color packing.

• 3RL: fine lining and delicate hair strokes
• 5RL: mid-sized lines and contouring work
• 5RM: soft shading and small fill areas
• 7RM: broader shading and efficient color packing

How does the anti-backflow design protect my machine and clients?

Each Wormhole cartridge includes a soft glue anti-backflow component inside the grip end, which helps block pigment and fluid from traveling back into the pen motor or tube. This reduces the chance of contamination and keeps your machine cleaner between changes.

• Internal soft glue seal reduces liquid migration
• Transparent housing shows fluid level and needle action
• Single-use cartridges lower cross-contamination risk

Are these cartridges compatible with my tattoo pen or grips?

Wormhole cartridges use the industry-standard cartridge size and connection, so they fit most cartridge-style pen machines and grips with a simple twist-and-lock action. Their universal fit simplifies switching between machines and brands during sessions.

• Standard cartridge dimensions for broad compatibility
• Twist-lock assembly for quick changes
• Works with most cartridge pen-style tattoo machines

What materials and packaging standards are used?

The needles are stainless steel for durability and precision, while the cartridge body uses clear PVC to improve visibility during work. Each cartridge is assembled in a controlled environment and sealed individually to maintain cleanliness until opened.

• High-grade stainless steel needles for consistent performance
• Transparent PVC housing for needle visibility and control
• Individually sealed pouches for hygienic storage

Who is this for: This 20-piece Wormhole set is suited to professional tattoo artists building a reliable starter mix or busy studios that need an everyday selection of liners and magnums. It’s also handy for permanent makeup technicians who prefer cartridge systems for hygiene and speed. Choose this pack if you want disposable cartridges that balance precision, shading ability, and broad machine compatibility without unpredictable fits.