It looks amazing when it's on! I've used House of Kolor, Tropical Glitz, and Paint Huffer, and this by far has the most shine.
1 lb (454g) Holographic Silver Jewels .025" Large Metal Flake - Paint Additive
1 lb (454g), Professional Grade .008" Chrome Silver Metal Flake, Fine Additive
1 lb (454g) Metallic Metal Flake - Chrome Silver .025" Large Pro Paint Additive
1 lb (454g) Candy Apple Red .008" Metal Flake, Auto Grade Fine Paint Additive
1 lb (454g) Holographic Gold Jewels Metal Flake .015" - Medium Paint Additive
1 lb (454g) Blaze Red Metal Flake .015", Medium Auto & Bike Elite Paint Additive
