I am sure this subject has been discussed many times but don't have the time to do a search.
I am looking for a producer / supplier of a good prop guard for 30/40 HP Mercury o/b engine - a large quantity say 100 pcs. More could follow.
Those engines are a bit small for your normal stuff?
Seems to be one predominant model in the UK check out bhg marine, force 4 etc. Not sure who makes it, its injection moulded so upscaling production probably not too tricky...