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.
1 Postcards Postcards must be rectangular to qualify for First-Class MailÂ® prices. 2  Oversized postcards will be charged as a letter or large envelope. 3  Size Requirements Minimum Maximum Height 3 1/2 4 1/4 Length 5 1/2 6 Thickness 0.007 1/4.