Quality Material : the pen body of this sort of touch up paint pen is made of plastic material, and the pen tip is made of polyester and acrylic material, providing you with a smooth writing, so you can our paint pen with Diversified Stuffed Contents: our empty paint pens are favored by children and amateurs, feasible to be stuffed with some ordinary ink, water, oil paint, liquid chalk and other watercolor, bringing your time a splash of color; Be careful not to very thick liquid filling, which may the nib not to out or unevenly Important Design of Steel Beads: each watercolour fluid pen has a steel ball inside, as a way of avoiding the watercolor or paint solidifying, and making the water color writing smoother; Please remember to put the ball into the pen, to get a standard using experience and Innovative Manufacture: the white touch up pen has a transparent empty pen tube, convenient for you to see it through, master the amount and add ink in time; Please note you should put the steel ball into the pen tube first, then inject with ink, and finally twist the pen head part tightly to write; Be careful not to pull out the pen refill, it may affect the Versatile Performances: our touch up pen can be applied for a wide range, and you can fill it with colored ink or mix your preferred colors, and then your creations on canvas, clothing, , glass, mirrors or paper, an ideal drawing item for or DIY lovers. size: (oblique head 6.0mm/round head 3.0mm) Material:plastic colour: transparent white Package Contents: 12 x Empty paint markers Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.