* G-Check is a sticker-type detection sheet designed to check if GHB (Gamma-hydroxybutyric acid) is mixed in       

   beverages or    alcohol.

* How to use

   1. Detach the detection spot with the protection film

   2. Peel off the protective film before use

   3. Place a drop of the liquid on the spot

   4. After 1 minute, if the color of the half part changes, DO NOT DRINK!!

* M-check is a sticker-type detection sheet designed to check if METH(Methamphetamine) dissolved in liquids.

* How to use

   1. Peel off the protective film before use

   2. Place a drop of the liquid on the spot

   3. After 1 minute, check if the color changes

   4. Take off the whole sticker and attach it to documents

   5. Mark the result