Skwerl tail jigs are ridiculously effective for bream fishing. I've used them and tied them myself for years. The tails on the ones you got are longer than what I use. If you trim them once they're tied, you cut the little wite tip off the hairs.

The one right above the "belly button" on the bucket lid is closest in length of hair to what I use. I've never made any from fox skwerl tails. Those red ones might be the ticket.