Dry Erase Marker Holder

This is a 4x dry erase marker holder, intended to be used with a 32diameter x 5mm thick magnet and screw(see link below). Please let me know if the screw size changes or some a variant of this is needed, alternatively I've included the .f3d so you can edit it in Fusion 360 if you like.
https://www.amazon.com/gp/product/B071XNJZBQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1