Specifications 1.5%-25% silver nitrate ink 2.Iso 9001:2008 & iso 14001:2004 3.Last at least 72 hours 4.Color: blue, purple 3) indelible ink bottle with sponge 4) indelible ink pen 5) indelible ink pad Silver nitrate ink specifications Name valid Silver nitrate ink, indelible ink, election ink, voting ink. Silver nitrate percentage 5%, 7%, 10%, 15%, 20%, 25% Ink bottle available 10g, 15g, 30g, 50g, 80g, 100g, 1000g Color Blue, purple Packaging details: 10g, 15g, 30g, 50g, 80g, 100g, 1000g bottle valid Delivery detail: 7--30 work days upon payment