Primary and Inspection covers are CNC machined from high strength, 6061-T6 aircraft grade billet aluminum. Finished with a durable powder coat finish that will add class and style to your Harley Davidson motorcycle. For our "Contrast" series, we machine custom designs back into the aluminum after painting for a high contrast finish that makes them "pop". Our Deep Cut 5-hole Derby Covers fit: 1999-Newer Twin Cam Bikes - all models of Dyna, Softail and Touring. Our Deep Cut 4-hole Primary Inspection Covers fit: 1965-69 Panhead Shovelhead 1970-84 Shovelhead FX, FL, FLH 1994 -98 Softail & Dyna 1999-Newer Twin Cam Bikes - all models of Dyna, Softail and Touring. All our products can be purchased online at www.bigborecustom.com We accept Visa, Mastercard, PayPal, E-transfer and ship worldwide from our shop in Parksville BC via Canada Post Makes the perfect gift.