When using oil, the curling iron itself has become stained brown. There is no problem with its use. I will sell it at a low price. Product Features: Curling Shape: Barrel Brand: Koizumi Material: Ceramic Color: White Size: 26mm Dimensions: Width 33 x Depth 3.8 x Height 6cm Power Supply: AC100-240V 50/60Hz Power Consumption: 124W/73W Warranty Period: 1 year Accessories: Silicone mat, instruction manual, warranty card Temperature Adjustment: 5 levels (approx. 80, 110, 140, 170, 200℃) Weight: 0.3kg