I use a real slate tile from Home depot cut into strips 3 inches wide they will even cut it for you if you don't have a tile saw. That's about $3 - $4 cheapest way to get breeder slates.
I use a real slate tile from Home depot cut into strips 3 inches wide they will even cut it for you if you don't have a tile saw. That's about $3 - $4 cheapest way to get breeder slates.