Wormhole Tattoo Cartridge Needles 50pcs Assorted 12mm RL — 3RL–11RL Round Liners, Anti-Backflow Sterile Pack

Wormhole Tattoo Cartridge Needles 50pcs assorted round liner set provides five popular liner sizes in individually sealed, anti-backflow cartridges for reliable shading and crisp lines.

Designed for tattoo artists who need variety, hygiene, and consistent ink flow, this pack includes 50 cartridges in five round liner sizes (3RL, 5RL, 7RL, 9RL, 11RL). Each cartridge is sealed to protect sterility, uses a rubber-band anti-backflow membrane to keep ink from contaminating the machine, and pairs stainless steel needles with durable PVC bodies for long-lasting performance. The light grey translucent tubes improve visibility so you can monitor ink and needle movement while working.

Which needle sizes are included and why do they matter?

This kit contains 10 cartridges each of 3RL, 5RL, 7RL, 9RL, and 11RL round liners, covering common needs from fine detail to bolder line work. Having multiple sizes on hand lets you switch quickly between delicate outlines and thicker contours without changing setups.

• 10× 3RL — ideal for ultra-fine outlines and small detail
• 10× 5RL — versatile for medium-detail work and tighter lines
• 10× 7RL — good for general outlines and controlled shading edges
• 10× 9RL — suited for heavier lines and filling small shapes
• 10× 11RL — best for bolder outlines and defining larger areas

How do these cartridges protect against ink backflow?

Each cartridge includes a built-in rubber band membrane that blocks ink from traveling back into the machine, reducing contamination risk and simplifying cleanup. This anti-backflow design supports safer workflows while maintaining consistent ink delivery.

• Rubber membrane prevents ink from entering the grip and tube
• Plastic barrier adds an extra layer of protection
• Less maintenance and lower risk of machine contamination

Are these cartridges compatible with my tattoo machine?

The cartridges use a standard 12mm round liner configuration and are compatible with most cartridge-style tattoo rotary machines on the market. The grey translucent plastic body gives improved needle visibility to help you match speed and depth to your machine’s settings.

• Standard 12mm RL fit for most cartridge machines
• Translucent grey tubes for easier needle and ink monitoring
• Designed for seamless plug-and-play swapping during sessions

What materials and packaging features ensure durability and safety?

Needles are manufactured from stainless steel for strength and corrosion resistance, while the cartridge housings use robust PVC. Each cartridge is individually sealed to preserve sterility until use and simplify storage and transport between appointments.

• Stainless steel needles for consistent performance and durability
• PVC cartridge bodies resist cracking and provide a secure fit
• Individually sealed packages for hygienic handling and storage

Who is this for? This Wormhole Tattoo 50-piece mixed round liner pack is tailored to freelance artists, apprentices, and studio pros who want a ready supply of common liner sizes in a single purchase. It’s useful for artists who prioritize hygienic, anti-backflow cartridges and need a flexible set that covers fine detail through heavier line work during busy tattoo sessions.