My general advice would be to AVOID AT ALL COSTS BUYING EYEPIECE SETS from any manufacturer or distributor. Generally eyepiece sets, some of which will include different filters and a barlow will represent the lower end of the quality scale sold by that company. Over the years I have seen eyepiece sets from Parks, Meade, Celestron, Orion and Skywatcher and they have generally been put together as a full focal length range of the company's cheapest Chinese plossl series, which IMO leave a lot to be desired. In addition they have all included some cheap filters. These sets also usually represent pretty poor value for money for what you get.
As Brian mentioned the Parks Gold Series are excellent eyepieces. But they will not come in any set. These are a 5 element Masuyama design which are the equal of Televue Plossls and other high quality simple design eyepieces based on the orthoscopic and plossl design.
You are best to purchase individual medium/high quality eyepieces in the "exact" focal length you need to suit your equipment and to build your own set over time.
Cheers,
John B
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