#6 3/4 Regular Envelope - Astrobright - 24# ReEntry Red (3 5/8 x 6 1/2) - Colors Series (Box of 1000) A Quantity of 1000 - #6 3/4 Regular Envelope - ReEntry Red 24# Astrobright ReEntry Red Paper - Standard Gummed Flap. Great for mailing invoices, statements, letters, checks, or announcements. This envelope may be sourced from any one of a number of top brands. Ships via UPS Ground