BIGWASP Curved Magnum Tattoo Needle Cartridges 50pcs Assorted 7RM–15RM — Sterile, Anti-Backflow, Rubber-Band Loaded

BIGWASP 50pcs Assorted Curved Magnum (RM) tattoo needle cartridges are a sealed set of transparent, rubber-band loaded cartridges in 7RM–15RM sizes designed for shading and filling with rotary, coiled and Hawk machines.

These cartridges provide a ready-to-use assortment of curved magnum round magnums (RM) so artists have a selection of needle groupings on hand for gradients, color packing and soft shading. The pack contains 50 sterile, individually wrapped transparent cartridges with anti-backflow membranes and rubber bands to secure the needles and help prevent ink from running into the tube. They are compatible with most cartridge-capable machines used by professional tattoo artists.

Which needle sizes are included and how are they arranged?

The set includes five different RM groupings, offering a practical range from tighter to wider magnums for varied shading needs. Each size is provided in equal quantity to give artists flexibility during longer sessions or when switching between line density and soft blends.

• 10 pcs 1207RM (7-round magnum)
• 10 pcs 1209RM (9-round magnum)
• 10 pcs 1211RM (11-round magnum)
• 10 pcs 1213RM (13-round magnum)
• 10 pcs 1215RM (15-round magnum)

How do these cartridges control ink flow and hygiene?

Each cartridge is fitted with an internal plastic membrane that limits retrograde ink flow into the machine or tube, helping maintain a cleaner setup. Cartridges arrive individually sealed to preserve sterility until use, and rubber band mounting stabilizes the needle grouping for consistent performance.

• Internal plastic membrane reduces ink backflow.
• Individually sealed pouches for single-use hygiene.
• Rubber band loaded cartridges for needle stability.

What machines and workflows are these RM cartridges compatible with?

These transparent cartridge needles are built to fit most modern cartridge-ready rotary and coil machines, as well as Hawk-style grips and adapters that accept standard cartridge fittings. Their plug-and-play design speeds up changes between sizes during sessions and suits both lining-adjacent shading workflows and full-color packing runs.

• Compatible with rotary machines (cartridge systems)
• Works with coiled tattoo machines accepting cartridges
• Fits Hawk-style cartridge grips and adapters

How should artists choose between the included RM sizes?

Pick smaller RM counts (7RM, 9RM) for tighter, more controlled shading and narrower color fills, and larger counts (11RM–15RM) when you need broader coverage or softer gradients. Swap sizes during sessions to layer tones or to speed up large-area color work while preserving finer control for edges and detail.

• 7RM–9RM: detailed shading and tighter fills
• 11RM–13RM: medium coverage and smooth gradients
• 15RM: faster color packing and large-area blending

Who is this for: This assortment is aimed at professional and experienced tattoo artists, apprentices in training, and studio owners who need reliable, disposable curved magnum cartridges for shading and color packing. It suits artists who prefer the convenience of preloaded, individually sealed cartridges compatible with a broad range of machines and who value anti-backflow features for cleaner operation. The kit is also useful for those stocking up for busy sessions or offering a variety of magnum sizes without buying multiple single-size boxes.