Minimalist, environmentally friendly, versatile and durable. With the interchangeable stainless steel tops you have a variety of different ways to use the same jar. These tops fit all regular MASON JARS, QUATTRO STAGIONI®, KILNER® Universal Jars, but also many other commercial jars with Ø 70 mm. They are made of 18/10 stainless steel, food safe, and dishwasher safe. Let your creativity run wild.