Description ● The biggest difference is that the pen s visual effects are optimized ● Different sizes of pen caps and slanted design of the caps allow you to quickly find the color number and the pen side ● Designed to solve all unnecessary worries for you just focus on creation ● Oil based pigment ink odorless washable ● Colorful not fade● It can be used within a small of colors and hook lines ● Non toxic Environmental Protection ● Quick Dry Covering power is strong Specification Material PlasticColor 60 80 colorsEach Pen Size L X W 15X1 5cm 5 91 X0 59 appr Box Size L X W X H 17X7X16cm 6 69 X2 76 X6 3 appr Package Included ● 1 60 80 colors double headed marker penNote ● It will be well packed please don t worry about the shipping