Steel framework, entirely moulded in cold-cure polyurethane; wooden strips on the underside of the seat and of the shell for stapling the fabric. Wood frame seat, entirely moulded in cold-cure polyurethane; we suggest to set the seat into place by means of the 2 threaded pins which are supplied. Designed and made by Rosetto Italy. Multiple leg options available, including timber 4 leg, metal 4 leg, trestle, swivel, and castor.