Synonyms of Hiccups, Chronic. General Discussion. A hiccup is an involuntary spasmodic contraction of the muscle at the base of the lungs (diaphragm) followed by the rapid closure of the vocal cords. Usually, hiccups last for a few hours or, occasionally, a day or two. However, chronic hiccups are ones that continue for an extended period of time.
Lets answer your question in several parts; The Short Version First: 1: First Class Letter - Max weight is 3.5 oz. 2: First Class Large Envelopes - Max weight is 13 oz. 3: First Class Parcels - Max weight is 13 oz. Long Version: You asked about âFirst Class Mailâ and the weight limits. Mail is defined as âLetters and packages conveyed by the postal systemâ. See Google.
Listed below are the countries and their price groups and weight limits for the five principal categories of international mail. Complete tables of prices are available in Notice 123, Price List. n/a = Service is not available. 1 Priority Mail Express International Flat Rate Envelopes maximum weight: 4 lbs. 2 Priority Mail International Flat Rate Service maximum weights: Flat Rate Envelopes and Small Flat Rate Priced Boxes, 4 lbs.; Medium and Large Flat Rate Boxes, 20 lbs. 3 First-Class Mail International maximum weights: Letters, 3.5 ozs.; Large Envelopes (flats), 4 lbs. Note that the heading in the maximum weight column lists both ounces and pounds (ozs. / lbs.) and that there are two numbers in the entry for each country (3.5 / 4) - this indicates that the maximum weight for Letters is 3 ...