The unique shape of the PK9 is characterized by three parts of sating-brushed stainless spring steel that act as a column and support the leather seat element. Poul Kjærholm was inspired by a sand print of his wife's bottom from a day at the beach. Later, during the design process, Hanne Kjærholm sat in boxes with clay to find the optimal and most convenient solution. Item number: PK9-BLACK-AURA Colour: Black Material: Aura leather/satin brushed stainless steel Dimensions: WxDxH 58x58x77 cm Seat height: 43 cm