Bowl ring 23 cm diameter

Simple joining ring, printable in four pieces, which allows you to use two 23 cm diameter salad bowl-type cups (link https://www.kasanova.com/it/insalatiera-pasabahce-in-vetro-da-23-cm-pas000105noc.html) to use one as a lid for the other. Useful for example for storing sourdough or other foods with an airtight seal