Pilot Jumbo Permanent markers are loaded with Pilot's iconic ink and feature a large 10mm nib on top of it's sturdy refillable aluminum body. The Pilot nib is durable, abrasion resistant and compatible with a broader range of surface textures than the average marker. Fast drying permanent ink for all surfaces. The Pilot Jumbo can be refilled up to 8 times with the Pilot refill bottle. (Refill available for $4)