 Hi, I'm Tanya from Art Resin Customer Service, and I have a resin tip for you. So one question I get asked over and over and over and over is what to do with those red stoppers that come in your Art Resin bottles. Good question. We put the red caps in our bottles to help minimize leaks during shipping. So once you receive your bottles, go ahead and remove those red plugs and throw them away. Simple, right? I'm not gonna lie. It's not always that simple. Otherwise, I wouldn't get calls and emails about it. Sometimes you can easily pull them out with a glove finger and other times do what I do and grab a kitchen knife and pry up on the edge of that red cap and I can easily pull it out with my finger. If they're really stubborn, you might need to use a pair of pliers to pull them out. But the good news is once it's out, you can throw it away and not be bothered with it again. There's your resin tip for today. Please feel free to reach out to me and the Art Resin team at support at ArtResin.com with any questions that come up. We're always here to help. Bye!