flash pen,promotional pen,light up pen The pen is good for promotion,it can flash when writing,customer's design are welcomed. flash pen,promotional pen,light up penPlastic ball pen with LED light,Light shines when writing,Fashinable design on top part,quite suitable for promotion.packing:1pcs/opp 50pcs/inner box 500pcs/ctn meas/ctn:62*35*30cm N.W:16 kg G.W:18 kg flash pen