Brand: Allstar Performance Manufacturer's Part Number: ALL50830 Part Type: Cap and Plug Kits Product Line: Allstar Performance Cap and Plug Kits Automotive Fittings Part Number: AAF-ALL50830 UPC: 848238026795 Fitting Material: Aluminum Quantity: Sold as a kit. Notes: These plugs are natural. Description: When it comes to fittings and plumbing supplies, Allstar Performance has you covered with AN cap and plug kits. They are available in plastic or aluminum. Each kit includes 5 of each size (-3 to -16).