550 HS is a high stool inspired by the 550 chair, designed by the Dutch furniture designer and interior architect Dirk van Sliedregt. Both models are produced under license by Satelliet and are available in the colours black and natural rattan look. The seat and back are made of the plastic HDPE. The frame is made of aluminum with a coating. The 550 HS can be used both indoors and outdoors. Optionally, the 550 HS can be supplied with a seperate seat cushion in a fabric of your choice. The 550 series also consists of a side chair (550 SC) and armchair (550 AC).