Flame-shaped Diamond Coated Rotary File, 2.2 mm, Fine abrasiveness is used for treating the nail cuticles and nail walls. Material of the working part: Diamond coating Shape: Flame Bit diameter: 2.2x8 mm Leg length: 36.6 mm Abrasiveness: F (Fine), red notch. Care of tools: Can be disinfected in any solution and sterilized at any temperature.