Do not be alarmed by the ad! Hip Pocket records measure just 3 7/8 inches in diameter and are made of thin, flexible vinyl–the same material as those thin flexible Eva-Tone Sound Sheets once found in magazines, etc.
In 1967, Philco-Ford introduced their Hip Pocket Record system, which included a portable player.
They are similar to the Pocket Discs by Americom Coperation — only the Americom (ABC Records) Pocket Discs, while the same size, played at 33 1/3 rpm. And Pocket Discs didn’t have their own portable player.
The fab fad only lasted a few years.