Injection Site Tenderness. It is common to experience irritation and tenderness or discomfort if vitamin B12 supplementation is received by injection. These side effects tend to subside after receiving the shot.
The United States Postal Service recommends that mailboxes be 41-45 inches off of the ground and 6-8 inches back from the curb with a minimum recommendation of 4 feet off the ground for those people living in the city.
Maximum combined length and girth (girth is the distance around the thickest part of the mailpiece) is 108 inches. When sealing a Flat Rate Envelope or Box, the container flaps must be able to close within the normal folds.