#10 Regular Envelope - Red Foil Lined - 24# White (4 1/8 x 9 1/2) - Business Series (Pkg of 100) A Quantity of 100 - #10 Regular Envelope - Red Foil Lined 24# White Paper. Foil Lining covers the flap and part of the inside of envelope. Perfect for Greeting cards, Weddings or any announcement. - Standard Gummed Flap. Visit our Amazon store to see pricing for different quantities. This envelope may be sourced from any one of a number of top brands. Ships via Priority Mail