A4 Envelopes for 4x6 cards - CutCardStock

Envelopes that will fit your 4x6 inch cards like a glove.  These A4 envelopes are perfectly sized at 4.25 x 6.25 to hold any 4x6 enclosure.

Premium Vellum Discount 4x6 inch Card Stock for DIY Invitations

Invitation Mat 4 3/4 x 6 3/5 - Cards & Pockets

Joyberg Blank Cards and Envelopes 4x6, 30 Pack White

LUXPaper A4 Invitation Envelopes

Basic Colored 4x6 Folded Card Stock Note Cards

Cards and Pockets - Cut Cardstock

Basic Colored 4x6 Folded Card Stock Note Cards

Environment Nature Inspired Desert Storm Envelopes, When you want a natural but smooth surface for an envelope, the Desert Storm A4 envelopes is a

Environment Desert Storm A4 Envelopes for 4x6 Cards

Classic Linen 4x6 Folded Discount Card Stock Blank 4x6 Linen