A wristband that lets wearers check if their drink has been spiked with a date rape drug has gone on sale in Germany.
How the wristband works
To use the wristband users stir their drink with a straw.
They then place a few drops on the white band and wait two minutes, if the test area turns blue they know their drink has been spiked.
Kim says that it is already having a positive impact on young women's lives.
"We donated some to a group of girls and they told me that they really like the wristbands. It makes them feel more aware and more safe.
"I also gave a girl a wristband and afterwards she was in conversation with a boy at a party and he asked her what it was.
"She told him 'it's a wristband that protects me from date rape drugs' and he was like 'wow' and he stepped back. She said it made her feel very strong."
"What happened to the girl at the festival felt so close to me. As if this could have happened to me and, I realised the danger so of course I have the wristband with me when I go out."
Eventually Kim would like to make products which can detect other drugs.