Knob Stainless Steel is a genuine spare part suitable for selected Hotpoint and Ariston Cookers and Ovens. Compatible with the following models: Ariston FB21IX FB36(IX)GB FB51(IX)GB FB51IX Hotpoint SY36X SY36X/1 SY37X SY37X/1 SY51X SY56X SY56X/1 SY86P SY89PG