The backrest frame of the Archibald Stools is made from moulded rigid polyurethane. The internal padding is in soft moulded polyurethane and polyester wadding. The seat frame is made from birch plywood with padding in polyurethane foam and polyester wadding. It is supported by an apron which connects it to the base. The seat is upholstered entirely in Pelle Frau® leather or fabric. The Archibald Stools can come with a wooden 4-legged base, available in two heights, or the classic metal stem. In the former, the feet are in solid ash and come with a Moka or Wenge stain, and there is a rectangular-section stainless steel footrest which has a unidirectional brushed finish on the top side and a mirror-polished finish on the other three sides. In the version with metal base the steel stem swivels and its height can be adjusted using a cushioned gas spring controlled by a stainless steel lever positioned underneath the seat to the right. The stainless steel footrest with rectangular section gradually thins towards the outside. The floor base plate is also made of steel. All visible surfaces are in mirror-polished steel except for the top of the footrest which has a unidirectional brushed finish.