Plastic Caps   Plastic Hub Caps   Steel & SS Caps   Tuner Caps   Aluminum Caps     O.D Thinkness 4 Lugs 6.00" 1.00" 5 Lugs 6.25" 1.25" 6 Lugs 6.50" 1.50" 8 Lugs 6.75" 1.75" 6-5 Lugs 7.00" 2.00" 8.00" 2.50" 9.00" 3.00" 4.00" Please ask for more variety of items. Custom made is also welcome!