Object type that identifies a stream and contains the information needed to control it, including a pointer to its buffer, its position indicator and all its state indicators. FILE objects are usually created by a call to either fopen or tmpfile, which both return a pointer to one of these objects.
First-Class Mail is a USPS trademark. The minimum size for First-Class Mail is 5 inches long, 3-1/2 inches high and 0.007 inches thick. The maximum size is 11-1/2 inches long, 6-1/8 inches high, and .75 inches thick. The maximum weight for letters is 3.5 ounces.irst-Class Mail International is a USPS trademark. Note: The cost of postage will appear on all international shipping labels. Maximum weight for letters is 3.5 ounces. Maximum weight for large envelopes is 4 pounds.
USPS can be another good choice for sending small parcels to Mexico, especially if you are shipping something light and inexpensive. First-Class International Parcel service is a really cheap option if your parcel is under 4 lbs, under $400 value, less than 24â³ long, and with less than 36â³ total length+depth+height.Normally, USPS shipments (even Priority Mail) are only tracked until they leave the US.irst-Class International Parcel service is a really cheap option if your parcel is under 4 lbs, under $400 value, less than 24â³ long, and with less than 36â³ total length+depth+height. Normally, USPS shipments (even Priority Mail) are only tracked until they leave the US.