These are gorgeous Phidippus regius Apalachicola white phased males selling as unsexed, but
Plwase note as with all white phased males, they will eventually moult to normal black and white as adults.
They are 10-12 mm 
And left the nest 1/26 & 2/26
They are feeding very well on green and blue bottle flies.
Please note: They will loose their white and turn normal black and white by their final adult moult as with all white phase males.
We do not practice in recessive line breeding (white x white) to deliberately produce white jumpers, as it it considered unethical and is fraut with health problems, including stunted growth and shortened lifespans (google for further information ) All our white jumpers come from white phase to normal pairings, but only a small percentage are white phase.
Apalichicola get their name from the region the originated Apalichicola Florida. 
They are an easy jumper to care for.
Please remember to provide a bright white led light directly above the enclosure for their wellbeing.