Our lids are made of premium food grade BPA-free plastic and silicone, non-toxic, rust-proof, totally food safe and long-lasting$Silicone seal gaskets & covered stoppers ensures airtight-seal & leakproof canning/mason jars with these lids on, perfect for food storage$You can enjoy drinking with our colorful decorative wide mouth , straws & silicone stoppers, ensuring you better mood in colorful life$Colorful plastic mason jar straw lids set in four colors, orange, purple, grass green and sky blue, decorates your drinks or canning jars$Great for color coding jams and preserve. Add fun to your colorful life. With the detachable stoppers, you can DIY your favorite color combination with lids or drink with large straws by taking the stoppers off.