#10 Regular Envelope - Pastel - 24# Light Blue (4 1/8 x 9 1/2) - Soft-hued Business Envelope Series (Box of 1000) A Quantity of 1000 - #10 Regular Envelope - Soft Blue 24# Exact Offset Soft Blue Paper - Standard Gummed Flap. Great for mailing letters, brochures, contracts, invoices, statements, business correspondence, checks, and more. This envelope may be sourced from any one of a number of top brands. Ships via UPS Ground