UV Stamping Ink. Available in Red & Blue. 2 Sizes AvailableUV stamping ink is essential for any club or bar that charges an entrance fee. It is only visible when needed- under UV light. It will only wash off when rubbed vigorously with soap and water. It is available in two sizes- 50ml and 250 ml- and two colours.
Click here to go to eBay to buy, and for more information about this product