in the erect condition, the size will vary from perhaps 5.5 to 7 inches in length and l.25 to 1.5 inches in diameter, and in some rare cases slightly larger.
Capitalize this past sentence correctly.
In the erect condition, the size will vary from perhaps 5.5 to 7 inches in length and l.25 to 1.5 inches in diameter, and in some rare cases slightly larger.