This is the Meetingframe Tilt 47 / 447 Swivel Desk Chair, designed by Alberto Meda for Alias Italy. These particular examples were produced in the 2010s. The frame of this piece is made of chromed aluminum and has die-cast aluminum elements, rendering a strong yet lightweight chair. The seat is composed of pvc covered polyester mesh, allowing for a cool seating situation. It swivels a full 360 degrees and is self-adjusting. The listed price is for one chair and we have three available for purchase. Each chair measures 28 inches deep, 28 inches deep, and 35.8 inches tall with a seat height of 18.5 inches. Overall, they are in very good to excellent condition with minor wear. Please see photos.