A furniture design theme where certain lines or shapes are traced out across the upholstery with a line of fastened metal studs.

Classically seen on leather-upholstered chairs "in this sort of pattern":http://catalog.findyourfurniture.com/Img/products/Seven_Seas_Seating_by_Bradington_Young/color/Seven%20Seas%20Seating%20-%20Club%20Chairs_CC718-01-b.jpg.
studded trim