DarkLab Vertix Cartridges - 0.30mm Medium Taper Round Shader, Box of 20

Consistent ink flow and reliable tip saturation keep your focus on the skin, not on re-dipping. The DarkLab Vertix Round Shader cartridges (0.30 mm, Medium Taper) are built to hold more ink at the tip, so you spend less time breaking rhythm during long sessions. Sold in boxes of 20, these cartridges are designed for professional artists who need consistent needle behaviour from every cartridge in the box.

Clear tips let you monitor ink flow in real time while you work, and the detachable design allows slight needle adjustments without swapping out the full cartridge. A dual-vent system in each tip shell creates a decompressing vacuum that minimises spray and ensures a clean rinse when switching between shades, helping prevent inks from mixing. Ink backflow into the grip is blocked by a safety membrane that also reduces motor stress on your machine.

Each cartridge uses Japanese surgical steel needles in tightly grouped configurations. Every unit passes a two-step quality control process

first automated, then human-inspected

before leaving the facility. DarkLab, the company behind FK Irons and Spektra, designed the Vertix line in the USA.

Best For:

The 0.30 mm medium taper round shader configuration suits shading, colour packing and soft blending. The medium taper sits between the softer entry of a long taper and the more aggressive feel of a short taper, making it a reliable default for artists who work across shading and colour in the same session.

Key Features

• Configuration: Round Shader
• Needle Diameter: 0.30 mm
• Taper: Medium
• Needle Material: Japanese surgical steel
• Tip Design: Transparent and detachable
• Ventilation System: Proprietary dual side vents with decompressing vacuum action
• Safety Membrane: Low-tension membrane
• Quantity: 20 cartridges per box