SP refills A and B contain different ink viscosity to aid ink flow, depending on the nib size. Be sure you pick the correct one!

Refill A is suitable for sizes 0.03, 0.05, and 0.1 mm Copic Multiliner SPs.

Multiliner SP inking pens are pigment-based, and provide the highest quality for all your inking needs. Ink cartridges and replacement nibs are available so you never need to throw these durable aluminum bodied pens away.Multiliner SP Features:

• Pigment-based inking pens
• Refillable with SP refill cartridges
• Black 10 sizes - including 0.03mm thru brush
• Colored Multiliner SP's in 12 colors and two nib sizes
• Aluminum body
• Waterproof & archival
• Compatible with Copic Markers
• Photocopy safe