The silicone lids are as described on the product description page. There are 6 different sizes of silicone lids and one trivet. These are 100% food grade silicone, heat resistant, microwave, freezer and dishwasher safe. I really like these silicone lids. These are air and water tight! Just push on the top to vacuum seal them. I am trying to get away from all plastic container for storage and only use Mason jars or glass bowls. These are convenient to cover leftovers in glass bowls. They are air and water tight. I know I will definitely use these when making Jello. I know what a mess Jello can make if someone spills it before it is set. These will save me money too wherever I normally would use aluminum foil or cling wrap. I am very impressed with these silicone lids. I received these silicone lids at a discount for my honest review.
Available at Amazon