Suede BrushDual Brass & Rubber Head MPI's Suede Brush is a rubber and brass double brush that is designed to clean the high grade natural suede used on MPI steering wheels. Use the abrasive brass side of the brush only in case of persistent stains: an improper use could damage the natural suede of the steering wheel.Reviving brushing: before using the MPI brush for natural suede, make sure the steering wheel is dry. Use the rubber side of the brush to remove dust and filth.Worn-out areas: use the brass side to carefully brush backwards and forwards. An improper use could damage the natural suede of the steering wheel.Water Stains: water can discolor the natural suede of the steering wheel. In case it happens, wet the entire steering wheel by humidifying the surface with water. Then, use a dry sponge or cloth to remove the moisture in excess and let the steering wheel dry in ambient temperature. Once the steering wheel is dry, brush it in one direction.