24 Pin Cartridges – Larger or Sensitive Areas with free protective pen sleeves Our 24 Pin Cartridges are designed for professional use on expansive or delicate areas like the scalp, neck, décolletage, and thighs. With more pins, they provide gentler treatment and cover a larger area. At Ultimate Skin Pro Esthetics, we offer these microneedling cartridges to support advanced Med Spa equipment with expert training. These cartridges enhance client comfort and ensure precision and efficiency. Elevate your practice with tools tailored for sensitive and larger areas.