Material:Acrylic UnitSize/weight:1.35x14(L)cm/0.02kg Packing:25pcs/polybag500pcs/ctn Cnt Size:440*240*240mm N/G:10/10.5kg Brand:JSL MOQ:2000 Function:*Rotatable refill*the black lead of pen can be changed*LOGOwill be displayed and flashed in theLCDin a certain rhythm*Smooth writing*Perfect for your brands promotion,newest promotional solar power gift.Features:A pure green product with no battery needed.Can work in sunlight,light,and every natural light is ok.Besides,this kind of product is waterproof.Any logo and image put into it by some tech,it will be flashed in the LCD in a certain rhythm,and be attractive enough.The advertising effect is perfect.The main point: the picture can be changed.The picture can be changed.The laser paper in back can be made to Never dry glue(make any picture)or stainless steel(laser carving). ***It have another item JSL-011,which with long and nice strap,u can hanging around your neck conveniently.