I have two fiberglass spinner from Germany with a metal backplate, about 4 7/8th inch diameter, looks very scale... been years, don't know the retailer. ESM spinner is 4 13/16ths inch metal with metal backplate looks durable but they don't have the two blade in stock. IMP spinner spun aluminum about 5 inches in diameter.
Return spinner to Miracle and ask for one that has a centered hole?