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.
The most that a letter can weigh and still be shipped using the United States Postal Service's First-Class service is 3.5 ounces. Letters weighing more may be subject to additional postage charges. Letters that do not bend, have clasps or are lumpy may also incur a nonmachinable surcharge.