Inner Diameter: Lug nut covers inner hex width: 3/4 inch (19 mm) - height: 0.95 inch (24 mm) - outer diameter: 0.95 inch (24 mm). These caps are compatible with most car wheel 3/4 inch (19 mm) hex bolts or nuts. Please check the size before ordering. Flexible Installation: Package includes 24 pcs black lug nut covers and 1 pc removal tool. 20 pcs for installation on your vehicle to protect the nuts from corrosion, plus 4 pcs as spares for easy replacement in case of loss or damage. Nut Protection: Enhance the appearance of your vehicle's wheel nuts. Helps prevent corrosion, dust accumulation, peeling paint, and rust. Available in different colors to complement your vehicle’s exterior. Durable Design: Made to be sturdy and long-lasting, these covers help protect lug nuts from rust and scratches, and help conceal existing rust marks. A practical solution to help avoid costly lug nut replacements.