This Kill 6727, the so-called Bird or Tulip armchair, is the hard-to-find version of an office chair with adjustable height. The blue leather is in excellent condition with beautiful patina and minimal signs of wear. The chrome structure with smooth-running wheels shows almost no signs of age. The hydraulic height adjustment works perfectly and allows you to have the seat height from 43 cm to 51 cm. This Kill version is the older original one designed by Kastholm & Fabricius for Alfred Kill International. These armchairs continued to be produced by Knoll in a later version. The designer couple Jørgen Kastholm and Preben Fabricius designed these armchairs in the style of functional and aesthetic Scandinavian design in the 1960s and created an absolute design icon. Seat depth: 41 cm. Height: 84 - 92 cm.