Molotow is the worlds leading name in Acrylic markers. 'One4All' premium quality pump marker pens are the only refillable acrylic marker on the market and feature their patented capillary and valve system – making them a truly unique and remarkable product. The acrylic based colour is non-toxic, highly opaque, semi-gloss, quick drying and permanent with very good UV resistance and fully intermixable with One4All Acrylic Spray Paint. These pump markers can also be used with almost all other media on nearly all surfaces. This Molotow One4All 227HS 4mm Neon Set of 6 contains the colours: Neon Yellow Fluo, Neon Orange Fluo, Neon Pink Fluo, Neon Green Fluo, Signal White & Signal Black.