Rare satin coat Egyptian spiny mice

I have a couple of pairs and some male pairs of Egyptian spiny mice, these have the satin coat mutation giving their fur a brighter shiny sheen to it vs the regular mat greyish color. babies are born greyish but brighten with age, adult pair is pictured but it's hard to get good pictures of their true color.
These are a larger exotic mouse that is quite easy to handle, they are very low odor, very active, live longer, males don't have the huge "parts" of domestic mice, females produce only a few babies per litter and they are born fully furred with eyes open, otherwise care is the same as regular mice, the fur over their backs is stiff and can be raised up but it's not actually spines like a hedgehog.