POSEIDON Tattoo Cartridge Needles 50-Pack Mixed Round Liners 1201RL–1209RL Sterile Disposable Membrane for Pen Machines

POSEIDON 50PCS Tattoo Cartridge Needles are sterile, disposable cartridge needles in mixed round liner sizes (1201RL–1209RL) designed to fit standard tattoo pens and deliver consistent ink flow with a one-time-use safety membrane.

These cartridges bundle six popular round liner configurations in a pack of 50, each sealed in its own blister and sterilized by EO gas. Manufactured with stainless steel needles and a stabilized tip material, the cartridges aim to make lining work predictable and compatible with most cartridge-ready grips and machines. The disposable membrane helps prevent backflow, and the cartridges’ joint design supports hygienic, single-use procedures.

Which needle sizes are included and why do they matter?

The set contains 1201RL, 1203RL, 1205RL, 1207RL, and 1209RL—five round-liner sizes that cover fine to bold linework. Having multiple diameters in one pack reduces the need to switch products mid-session and lets artists adapt line weight quickly.

• 1201RL for ultra-fine details and single-strand lines.
• 1203RL–1205RL for general outlining and shading accents.
• 1207RL–1209RL for thicker outlines and bolder strokes.
• 50 cartridges total for extended sessions or multiple clients.

How do these cartridges maintain hygiene and prevent contamination?

Each cartridge is individually blister-packed and sterilized with ethylene oxide (EO) gas, eliminating pre-use contaminants. The built-in disposable membrane reduces the risk of ink or fluid backflow into the machine, supporting a cleaner workflow.

• EO gas sterilization for single-use sterility assurance.
• Independent blister packaging preserves sterility until opened.
• Disposable membrane limits cross-contamination with ink/fluids.
• One-time joint design ensures cartridges are discarded after use.

Are these cartridges compatible with my tattoo pen and how is performance?

POSEIDON cartridges fit all common standard cartridge grips and pen-style tattoo machines. The stainless steel needles and stabilized tip material are engineered for smooth ink flow and steady needle performance, which helps produce reliable lines across sessions.

• Universal fit with most cartridge-ready grips and pens.
• Stainless steel needles for consistent ink transfer and durability.
• Special tip material stabilizes needle movement for cleaner lines.
• Designed for quick swaps during tattooing to maintain speed and precision.

What support or guarantees come with this pack?

POSEIDON offers a satisfaction promise: if the product does not meet expectations, the company provides replacement or refund options. The process is intended to be straightforward to minimize downtime for artists.

• 100% satisfaction guarantee with replacement or refund options.
• No-questions refund policy to simplify returns.
• Customer support available for product or compatibility questions.

Who is this for? This 50-piece mixed pack is suited to professional and apprentice tattoo artists who use cartridge-style pens and need a range of round-liner diameters on hand. It’s practical for studios that require sterile, ready-to-use cartridges for multiple clients or for artists who appreciate fast cartridge changes and reliable needle behavior during detailed linework. Avoid reuse of disposable cartridges; follow local regulations and studio protocols for safe disposal.