POSEIDON Tattoo Cartridge Needles 50‑Pack Assorted Sizes — Mixed RL RS RM, Sterile Disposable Membrane

POSEIDON 50-piece cartridge set delivers sterilized, disposable tattoo needles in ten mixed sizes for liners, shaders and magnums compatible with standard cartridge grips and machines.

This kit bundles 50 individually blister‑packed cartridges (10 sizes × 5 each) to give tattoo artists a ready assortment of round liners (RL), round shaders (RS), round magnums (RM) and a 9M1 configuration. Each cartridge is manufactured with stainless steel components and a specially designed tip for consistent ink flow and stable needle performance. Cartridges are EO gas sterilized for single-use hygiene and designed to fit most standard rotary and coil cartridge pen systems.

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

The set contains a mix of line and shading configurations so you can switch between outlining and filling without buying separate packs. It includes common liner sizes for crisp lines and multiple shader/magnum options for smooth gradients and filling. The combination is suitable for a wide range of styles from fine detail to solid color work.

• Round liners: 3RL, 5RL, 7RL, 9RL — for precise outlining and fine details
• Round shaders: 5RS, 7RS, 9RS — for soft shading and textured fills
• Round magnums: 7RM, 9RM, 9M1 — for packing color and gradients
• Pack count: 50 cartridges, five of each size for consistent supply

How does the cartridge design affect ink flow and stability?

POSEIDON cartridges use stainless steel needles and a purpose‑built tip material to promote steady ink flow and reduce splatter. The one‑time joint design and membrane help prevent backflow and contamination, maintaining consistent performance across uses. That design also makes the cartridges easy to swap during sessions.

• Stainless steel needles for smooth pigmentation transfer
• Special tip material for consistent needle movement
• Disposable membrane reduces ink backflow for hygiene
• Blister packing preserves sterility until opening

Are these cartridges compatible with my machine and are they safe to use?

POSEIDON cartridges are made to work with most standard cartridge grips and machines, including popular rotary and coil pen systems. Each cartridge is EO gas sterilized and individually blister sealed to meet single‑use hygiene practices. Always follow your local tattooing regulations and aftercare protocols when using disposable cartridges.

• Compatible with standard cartridge grips and tattoo pens
• Individually blister packed and EO gas sterilized
• Single‑use disposable cartridges for safer workflows
• Follow studio hygiene and disposal guidelines

How many cartridges come per pack and what warranty is offered?

This kit contains 50 cartridges: five cartridges of each of the ten listed sizes. POSEIDON offers a satisfaction policy with replacement or refund options to address product issues. Keep packaging and batch information if you need to contact support.

• 50 cartridges total — 10 sizes × 5 pieces each
• Sizes included: 3RL, 5RL, 7RL, 9RL, 5RS, 7RS, 9RS, 7RM, 9RM, 9M1
• Manufacturer offers replacement or refund options
• Retain blister packs for warranty or returns

Who this set is for: professional and apprentice tattoo artists who need a versatile, sterile cartridge assortment for daily work. It suits artists who switch frequently between lining and shading, studios that require disposable single‑use components for hygiene, and anyone stocking up to avoid interruptions. If you need widespread compatibility, consistent ink flow, and a ready variety of sizes, this POSEIDON pack is designed to cover most session needs without buying multiple single‑size boxes.