* Top Quality: Our lids are made from sturdier plastic with silky smooth threading for an effortless twist every time. The thick, heavy-duty silicone liners are easy to clean and designed to stay in place, so you won't have to worry about losing them. * Leak-Proof and Airtight: The removable silicone liner creates a tight seal that prevents leaks and keeps your contents fresh. * No Plastic Contact: The full-coverage silicone liner ensures your jar contents only touch food-safe silicone, not plastic. * Built to Last: Our lids are twice as thick as those from Ball and most other plastic caps. The heavy-duty liners are just as durable and just as hard to misplace. * Dishwasher and Freezer Safe: Both the plastic lids and silicone liners are dishwasher safe. The liners also have a convenient pull tab for easy removal. * Safe and Non-Toxic: Made from BPA-free polypropylene and platinum-cured LFGB European-grade silicone. This is the highest quality available and it passes the pinch test. We’re proud of this updated design. The threading feels silky smooth and turns effortlessly in your hand. The included silicone liners are also compatible with Ball and Mainstays plastic caps, Mason Jar Lifestyle stainless steel lids, and most other Mason jar lids. They even work well with just a metal band. Each set includes one lid in Cherry Red, Deep Blue, Ultra Violet, Leaf Green, and Charcoal Gray. These colors perfectly match our silicone sleeves.