Air grilles

Air grilles to protect holes from rain.This model could be attached using four magnets, specifically designed to fit on rain cover for fume extraction I've designed. That already has four magnets in position so the air grilles can be attached and removed easily and give another layer of protection. Link to rain cover: https://makerworld.com/en/models/467362#profileId-376425 BOM:Material: PET-G4 magnets 4 x 2mm