which has a body diameter of 5 529 mm has a ramp or flare with a diameter of 5 87 mm which is the same diameter as the body of unit 1 3 this allows for smooth transitions between each unit body when the series is used as directed front end cap 2 is removed from first unit in series e g 1 1 and is inserted into piercing from the intended back of he piercing after insertion the front cap 2 is snapped onto the body to close the jewelry and keep it in the piercing the unit is worn for a predetermined time period typically 10 30 days after the time period elapses the back end cap 3 from unit 1 1 is removed exposing the u201c female u201d end of the body the front cap is removed from the next unit in the series 1 2 exposing the male end of the body the male end of unit 1 2 is inserted into the female end of unit 1 1 which is still in the piercing connecting the two units into one assembly the assembly consisting of unit 1 1 still in the piercing and unit 1 2 is pushed through the piercing sliding unit 1 1 out of the piercing while simultaneously sliding unit 1 2 into the piercing at this point unit 1 2 is in the piercing and unit 1 1 is out of the piercing but still connected as an assembly unit 1 1 is disconnected from the assembly and discarded leaving unit 1 2 in the piercing the front cap of unit 1 2 is snapped onto the body.