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.
Packages can be sent using Priority Mail ExpressÂ®, Priority MailÂ®, First-Class Package Service-Retailâ¢, USPS Retail GroundÂ®, and Package Services. Contents must not weigh more than 70 lbs. Lower weight limits may apply. Girth is the distance around the thickest part of the package.