projective pen: 1,length:14.3cm,diameter:1.26cm 2, battery:AG3*4cells 3,pen weight:23G 4,pen body is spray lacquer projective pen:This is our patent product,we have confidence do these kinds of projection ball pen. Material: metal Size: length:14.3cm,diameter:1.26cm Battery: AG3*4cells Type: twist and click Pen core: metal / plastic Packing: 1 PC/OPP bag,50PCS/inner box,500PCS/CTN Ctn Size: 58*32 ...