12G (0.35mm) Single Magnums — Yilong Diamond & Yellow Dragonfly

Saturate large areas quickly and pack dense pigment with 12G (0.35mm) Single Magnum (M1) Cartridge Needles. Featuring standard 0.35mm needle pins in a flat single-layer arrangement, these magnums deposit maximum ink per hit, making them the ultimate workhorse for solid color packing, heavy blackwork, and bold shading.

Pick your preferred cartridge housing style from two reliable studio brands:

• Yilong Diamond: Engineered with a rigid diamond-profile casing that locks the flat needle bar in place to prevent side-to-side wobble under heavy pass pressure.

• Yellow Dragonfly: Built with high-visibility clear/yellow medical-grade housing for effortless ink reservoir tracking and smooth, low-friction operation.

Key Features:

• 0.35mm (12 Gauge) Standard Diameter: Holds maximum ink capacity per strike for fast, solid saturation and rich greywash gradients.

• Flat M1 Configuration: Delivers clean, sharp outer edges for crisp block-filling and precise whip shading.

• Fluid Backflow Membrane: Flexible internal safety barrier seals ink and biological fluids away from your machine grip.

• E.O. Gas Sterilized: Individually blister-sealed for 100% hygienic, single-use studio safety.

• Universal Standard Fit: Compatible with all standard cartridge-style pen machines and rotary grips.