Basically, everything is either made from silicone or beeswax, which makes it eco-friendly. Honestly the set comes with everything that you need for the kitchen..except for maybe a couple of swedish dishcloths. I got those separately to replace my paper towels and they’re great so far. Stretch lids: I use these lids just like saran wrap.
https://www.amazon.com/Silicone-Eco-Friendly-Reusable-Preservation-Vegetable/dp/B07TKHVH76

