TPI 20 Premium Chrome Closed Bulge Acorn Wheel/Lug Nuts (12x1.5) 1.4" Tall, 3/4" Hex Bulge closed acorn design, 1.4" Tall, 3/4" Hex, Cone seat. Greater seating surface to prevent damage during installation 3 layers of brilliantly leveled Nickel undercoating followed by 1 reflective layer of chrome Cold forged and heat-treated for Optimal Hardness Precision threads