Penny rugs are not meant to be placed on the floor. These are designed to be table runners, often called table mats.
This is a hand craft that is hundreds of years old. The term penny comes from the coins women used to trace for the circles. The term tongues are also a time honored term. This is the decorative edging which happens to look like tongues.
The top of each rug is 100% hand stitched in the same fashion as women did hundreds of years ago. Each is one of a kind, made in the USA. Many are spontaneous