Just twist to advance! These bright, fluorescent, smear-proof gel inks have transparent, read through color that is bold enough to highlight important text without bleeding through paper! Gel inks are Non-Toxic and will not dry out! Color Selection: Fluorescent Yellow, Pink, Green, Blue, Purple and Orange. Cap and end match gel ink color. Includes a one color, one location screen print on the barrel. Barrel Imprint Area: 1.5" x 0.75". Standard Production Time: 4-6 working days for catalog quantities. Product Dimensions: 5.38" Long. Packaging: Bulk, 250 @ 8 Lbs. Minimum: 100 per color.