The Combo Synthetic Color Ring is used for Envy wigs. 

synthetic hair colors include the following shades: 

• Black/Browns: Black, Dark Brown, Medium Brown, Light Brown
• Blondes: Dark Blonde, Medium Blonde, Light Blonde, Frosted
• Greys: Dark Grey, Medium Grey, Light Grey
• Reds: Dark Red, Lighter Red
• Highlighted: Almond Breeze, Chocolate Caramel, Cinnamon Raisin, Ginger Cream, Mocha Frost, Vanilla Butter
• Rooted: Amaretto & Cream, Chocolate Cherry, Creamed Coffee, Golden Nutmeg, Sparkling Champagne, Toasted Sesame