.048 Super Flow - Black'
The OTR Super Flow refillable marker has a round 0.3 inch nib. Equipped with OTR's pump action valve system, it's easy to juice up the nib and get your ink flowing fast. The cap at the end of the marker allows for a quick, and clean refill. The Super Fresh also contains a ball bearing to ensure that your ink formula is thoroughly mixed for a smooth and solid performance.