These Seashell Filler stamps are what I use to achieve the "upholstered look". I did a YouTube video on this while we were making the Tally Book cover template. There is a choice of a narrow or wide stamp, or use both to create acute and obtuse angles in the same pattern.
You can watch that video HERE
Barry King tools, They cost more because they are worth it. Crisp impressions and quality steel set these tools apart from the cheaply cast tools from the big box leathercraft stores. I used to wonder why anyone would pay over $30.00 for stamps when plenty were available for $7.00... then I used some.