Hey Mason jar lovers! This 18-pack of black plastic lids is exactly what you need if you're tired of dealing with rusty metal lids. You get 9 wide mouth (86mm) and 9 regular mouth (70mm) lids, each with removable silicone rings that make cleaning super easy. The best part? They're completely rust-proof since they're made from PP plastic - no more metallic taste in your food or drinks! The silicone rings create an awesome seal that prevents leaks, but honestly even without the rings they seal pretty well. Perfect for canning, storing dry goods, meal prepping, or taking food on the go. Imagine having uniform black lids on all your Mason jars - looks so much nicer than mismatched lids, right? Great for nuts, grains, salads, pickles, candy, or even using them as portable containers for picnics and camping. Since they're reusable and dishwasher safe (though hand washing is recommended for longer life), you'll save money compared to constantly buying disposable metal lids. Seriously, if you use Mason jars for anything in your kitchen, this lid set is a game changer!