Art Primo Toxic ShockerThe Art Primo Toxic Shocker is a hard bodied, slender pocket sized marker that pairs well with dyes, stainers, and thin inks. Since the marker body is not easily squeezable thicker paints will not flow through the nib. The Toxic Shocker has a .75 ounce capacity and a durable 10mm felt nib. Refillable and with replacement nibs available here. Sold empty. Refill with Magic Ink, Pilot Ink, Steve Garvey, and OTR Flowpen Ink.