Wormhole Tattoo Round Liner Needle Cartridges 50pc Assorted 3RL–11RL — sealed, anti-backflow, light-grey tubes

Wormhole Tattoo Cartridge Needles 50pcs is an assorted pack of sealed round liner cartridges (3RL–11RL) made for consistent ink flow and cross-machine compatibility.

Whether you’re stocking a kit or upgrading your daily needles, this set gives five common round liner sizes in one sealed pack. Each cartridge is individually wrapped, features an anti-backflow membrane and rubber band-loaded design, and pairs a stainless steel needle with a durable PVC tube. The mix includes ten pieces each of 1003RL, 1005RL, 1007RL, 1009RL and 1011RL, all produced to fit most cartridge-style tattoo machines and provide visible needle alignment through light grey tubes.

How do these cartridges prevent ink backflow and contamination?

The cartridges use an internal plastic membrane combined with a rubber band-loading system to block ink from traveling back into the grip or machine. This barrier reduces the chance of cross-contamination and makes cleaning the machine body simpler. Each cartridge is also individually sealed, preserving sterility until the moment of use.

• Plastic membrane prevents ink from flowing into the tube or machine
• Rubber band-loaded design helps maintain secure needle position
• Individually sealed packaging ensures single-use sterility

What sizes are included and when should I use each?

The pack contains 10 cartridges of each round liner size: 3RL, 5RL, 7RL, 9RL and 11RL. Smaller liners (3RL–5RL) are suited for fine detail, thin lines and intricate lettering. Mid to larger liners (7RL–11RL) handle thicker outlines, bolder lines and faster coverage where more ink deposit is needed.

• 3RL — ultra-fine lines and delicate detail
• 5RL — thin outlines, small script, precise work
• 7RL — standard outlines and moderate line weight
• 9RL — bold lines and quicker coverage
• 11RL — heavier outlines and thicker line styles

Are these cartridges compatible with my tattoo machine?

Wormhole cartridges are made to fit the majority of cartridge-style tattoo machines on the market. The light-grey PVC tubes improve needle visibility so you can better align depth and stroke during work. Always check your machine’s cartridge fitting standard; these are designed as standard RL cartridges for broad compatibility.

• Standard RL cartridge connection fits most cartridge machines
• Light grey tubes enhance needle visibility while tattooing
• PVC and stainless construction chosen for durability and grip

What materials and safety features do these needles use?

The needles combine stainless steel points with PVC cartridge housings for corrosion resistance and a steady feel in the hand. The rubber band loading offers extra stability to the needle cluster, and each cartridge’s sealed packaging supports single-use hygiene. These elements aim to deliver reliable performance without compromising cleanliness.

• Stainless steel needles resist corrosion and hold a sharp edge
• PVC tubes are durable and provide tactile stability
• Sealed, single-use packing reduces contamination risk

Who is this for: Tattoo artists and apprentices who want a ready-to-use assortment of round liner cartridges covering common line weights. This 50-piece set is useful for shop restocking, traveling artists, training sessions and anyone who prefers pre-sterilized, individually packed cartridges that work with most cartridge machines.