Product details - This 8 piece starter set of uni posca marker ultra fine tip pc 1mr pens feature ultra fine, precise calibrated tips to produce refined lines which are 0.7mm wide with a water based ink which produces no odour'. '.strtoupper('i')f used on porous surfaces such as paper, cardboard, stone, wood, silicone, fabric or unglazed ceramic, these pens are permanent.smooth surfaces such as glass, glazed ceramics, pvc and smooth metal means your design will need fixing with a spray of water based varnish, apart from glass which should be put in a 160 degree oven for 45 minutes beforehand'. '.strtoupper('i')nstructions on how to make permanent terracotta by baking at 220 degrees for 45 minutes, then spraying with clear varnish porcelain by baking at 160 degrees for 45 minutes, then spraying with clear varnish glass by baking in the oven at 160 degrees for 45 minutes then spraying with clear varnish textiles by ironing on reverse metal, plastic and wood by spraying with clear varnish'. '.strtoupper('p')recise, calibrated tip produces refined lines'. '.strtoupper('u')ltra fine 0.7mm line width'. '.strtoupper('w')ill write on almost any surface'. '.strtoupper('n')o odour'. '.strtoupper('w')ater based'. '.strtoupper('p')ermanent on porous surfaces'. '.strtoupper('e')rasable on smooth surfaces'. '.strtoupper('b')leed proof on paper and card |