Starbrite Kleen caps are a perfect way to keep the inks safer & cleaner by using one per client, then throw them away. There are 48 ink caps per box which only equals $0.42 each. You can not go wrong by adding a couple bucks more for a tattoo to make sure your client is much safer by limiting the contamination getting into the inks by opening and closing bottles several times after tattooing many people. We will make sure you and your clients are protected as best as we can.