Metallic decor pens are permanent on porous surfaces such as clay, pottery, brick, stones, rubber, wood & glass. These are a fantastic range of multi-purpose fibre pens. Non-toxic colours, safe and light-resistant with perfect coverage even on dark or coloured backgrounds, they come with a super-durable fixed tip and ventilated safety cap. All colours are easily washed off your hands, but they may stain clothing. Perfect for small jobs, and even for preschoolers.1 each Gold, Silver, Green, Magenta and Blue.