... 1. Invisible ink, is ideal for anti-counterfeiting and privacy protection,2. This ink is only be ... & Environmental friendly.Description:Invisible ink(for stamp)Items: CH-8001Color: blue,red,yellow,green.Packing details:Packing: ... light, it is ideal for privacy protection, and it can be packed together with a UV ... please kindly tell me the qty you prefer, and i'll send you our quotations ASAP according ...