Product Details  *Material: Acrylic *mini order just 3000pcs. *unit size:13.5x140(L) mm *image size 26x11.5 mm *unit weight:28G  You can give me any image word by e-mail,   Image files needed (by email)  a) image size 26x11.5 mm  b) image resolution 300 dpi  c) image file format PSD / TIF / EPS / BMP / AI / JPG  d) Lines of text you want to appear on reverse side Unlike other promotional pens, this model allows your logo, image blinking for several years. The top of the pen is a LCD panel which is powered by solar and the photo is insertable. It means that you can easily change the inside image at will. It always flashes and advertises your company more attractively and motionally. You can print your customers' logo , that means you can make the blinking logo yourself. And your customers can insert their own images or pictures instantly. Change the picture any time. Any logos are able to be put into the pen. it bettery free,solar power, image changeable  cord or coherer clip Packaging:polybag and egg shell