gel ink pen size:150x11.2x14.5mm Gel ink pen,gel pen,gel pen set,2.color: classic color ,fluorescent color ,pastel color,metallic color,glitter color.3.Surrounding protecting ink,5 defferent color barrels for options.4.Safely certirication :ASTM D 4236& EN 71-35.packing:12PCS/dozen box.114dozen /Carton,48x39x22cm,18/20kgs.6..For more dataild ,please contact me .. gel ink pen