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.
One ounce is a business envelope with 5 sheets of typical Xerox paper, or 1 sheet and six 4x6 photos. Leave out 1 sheet or 1 photo to be safe. 3.5 oz means you can't weigh more, but you pay for 4 oz. Limits, all countries: value under $400, size under 6 1/8 x 11 1/2 x 1/4 thick (same envelope limit as domestic).Int'l Flats - 1st Class Mail International. Envelopes up to 15 x 12, weights up to 4 lbs.Canada, roughly $4 / lb Mexico roughly $7 / lb ROW roughly $8 / lb. OVER ABOUT 2 1/2 POUNDS: To ROW (Rest Of World) at over about 2.5 lbs, a Priority Flat Rate Envelope will be cheaper. Get the legal size 9-1/2 x 15 -- same price as stnd size for international.nt'l Flats - 1st Class Mail International. Envelopes up to 15 x 12, weights up to 4 lbs. Canada, roughly $4 / lb Mexico roughly $7 / lb ROW roughly $8 / lb. OVER ABOUT 2 1/2 POUNDS: To ROW (Rest Of World) at over about 2.5 lbs, a Priority Flat Rate Envelope will be cheaper.