The Center-Mount Convex Mirror Head with J-Bracket is a practical and reliable product made of stainless steel. Its 8-inch diameter convex glass helps eliminate blind spots, ensuring safer maneuvering. The mirror's plastic ball stud is rust-resistant and won't crack the mirror backing. With a 5/16 inch center-mount ball stud, it offers added stability and easy tilt adjustment. This mirror has been vibration-tested and salt-spray-tested for a minimum of 360 hours, guaranteeing durability. Sold individually, it fits most makes and models, making it a versatile and essential choice for any vehicle.