These are beautiful Phidippus audax 'Big Bend'
Selling as unsexed due to the males maturing late, but these are probably female. 
They left the nest 7/25
And are 12-15 mm 
This is a random listing, and they will be randomly picked.
Males and females are almost identical,  although there can be differences in patterns.
Males have white on the tops of their pedipalps and females do not.
They are a good sized Jumper.
audax 'Big Bend' are one of 3 different locales, 'Big Bend'  Bryantae, and normal audax which are mostly black.
Big Bend originate from Panhandle in Florida.
They are a stunning jumper, and are easy to care for.
They are also greedy feeders, and as adults will readily take a blue bottle fly or 2 green bottle flies.
But dont over feed.
Please remember to provide a bright white led light directly above the enclosure for their wellbeing.