Steel framework, entirely moulded with cold-cure polyurethane. Seat moulded in double softness foam: softer in the centre for a better comfort and harder all around for a better upholstery.Wooden strips on the underside of the shell for stapling the fabric. Designed and made by Rosetto Italy. Multiple leg options available, including timber 4 leg, metal 4 leg, trestle, swivel, and castor.