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.
First Class Mail Flat (1 oz.) $0.98: First Class Mail Flat - each additional ounce: $0.21: First Class Mail International Letter: $1.15: Priority Mail Express (0.5 lb., zones 1&2) $21.18 and up: Priority Mail (1 lb., zones 1&2) $5.95 and up: First Class Package Service (1-6 oz.) $2.61 and up: Parcel Select Ground (1 lb., zones 1&2) $5.95 and up