MAST TATTOO Pro Cartridge Needle Assortment 50pcs 5RL–13RL | Clear Body & Anti-Spitback

MAST TATTOO Pro Cartridge Needles 50pcs Assorted deliver a mixed set of high-density, clear-body round liner cartridges (5RL, 7RL, 9RL, 11RL, 13RL) built for smooth ink flow and reliable performance across rotary and pen-style machines.

These professional-grade cartridge needles are designed for tattoo artists who need a versatile starter supply of round liners in common sizes. Each cartridge features a clear plastic body for easier cleaning and color switching, plus an internal membrane to reduce ink spitback. The assortment gives you a compact selection for fine line work, lining larger areas, and transitioning between needle groupings without changing cartridge models.

What makes these cartridges compatible with my rotary or pen tattoo machine?

The MAST Pro cartridges use a standard snap-in connection and a universal shaft profile that fits most modern rotary and coil-style cartridge grips and pen machines. The clear plastic construction and membrane system are independent of the motor type, so you can expect consistent feed and reduced splash across devices.

• Universal snap-fit design compatible with most cartridge-ready grips and pen machines.
• Membrane system prevents ink spitback into the machine.
• High-density plastic body resists flex during use for steady needle action.
• Works well with both rotary and coil tattoo machine setups.

How do the needle sizes in this mixed pack affect line work?

This mixed pack includes 5RL, 7RL, 9RL, 11RL and 13RL, offering a progression from finer lines to fuller rounds for thicker contours. Smaller RLs (5RL, 7RL) suit delicate detail and tight lining, while larger RLs (11RL, 13RL) are ideal for bolder outlines and filling edges without switching to a shader cartridge.

• 5RL–7RL: precise, controlled thin lines for detail and script.
• 9RL: balanced option for general-purpose lining and small bold strokes.
• 11RL–13RL: larger rounds for heavier outlines and strong edges.
• Progression enables quick in-session changes to match stroke weight.

How do the membrane and clear body improve workflow?

The internal membrane reduces ink suction and spitback, protecting your machine and keeping the work area cleaner. The transparent cartridge body lets you visually monitor ink flow and spot color residue when switching pigments, which helps reduce cross-contamination and saves time during multi-color sessions.

• Membrane prevents backflow and reduces machine contamination risk.
• Clear bodies make it easy to see ink level and cleanliness between color changes.
• Smoother feed of ink to the needle for consistent saturation.
• Simplifies cleaning of the visible tip area during long sessions.

Are these cartridges sterile and ready to use?

MAST Pro cartridges are intended for professional tattoo use; they arrive individually packaged and sealed to maintain sterility until opened. Always follow your local health regulations for storage, handling, and disposal, and inspect each sealed pack before use.

• Individually sealed for hygiene and single-use convenience.
• Inspect packaging integrity before each session.
• Dispose of cartridges according to local biohazard rules after one use.
• Pair with your shop’s established antiseptic and sterilization protocols.

Who is this for: Tattoo artists, apprentices, and studios looking for an economical mixed set of professional round liner cartridges for everyday lining and detail work. This 50-piece assortment suits artists who want a range of RL sizes on hand for client appointments, walk-ins, and practice sessions while maintaining clean, reliable ink flow and compatibility with most cartridge-style machines.