Manual Bread Slicer Blade Guard

My wife has joined the sourdough baking cult, I mean club, and recently upgraded from bread knife to a manual bread slicer. Only downside with the one we picked up off of that big online retailer is that it has an exposed blade, so we designed a simple guard that attaches magnetically to the upright metal guide plate. There are 4 recessed holes for 6x2mm magnets that press into place, and if needed a small drop of glue could hold it in place, but we didn't need that. This guard was sized to fit what appears to be a very common manual bread slicer sold online, that has a 17cm blade.