It happened around 5:00 a.m. Tuesday at the store in the 100 block of West City Avenue in Bala Cynwyd.
Police say the suspects entered the store and announced a robbery.
One of the men displayed a gun and ordered the three employees into a back room.
The suspects then ordered one of the employees to open a safe and remove cash.
The men then fled the store.
They are described as black males standing between 5'4" and 5'1" tall. One man was wearing a dark hooded sweatshirt and the other was wearing a green hooded sweathshirt.