Fotasy JJC White Balance Filter WB-F1 for $10

It looks like a 3rd-party seller has triggered a price-match by Amazon itself, it is the Fotasy JJC White Balance Filter WB-F1 going for $10 with free shipping for Prime members or with a $25+ order. Limit up to three per customer by Amazon itself, but if you need more, the fulfilled by Amazon 3rd-party seller that likely triggered the price-match also has them for $10. This is not a lightning deal, so expiration time unknown.