Grab too much diagonal a2 envelope experimental lineup Montgomery
Amazon.com : LUXPaper A2 Invitation Envelopes in 80 lb. White with Peel and Press for 4 1/4 x 5 1/2 Cards, Printable Square Flap Envelopes for Invitations, 50 Pack, Envelope Size 4
A2 cardboard envelopes 234mm x 334mm 300gsm 100 envelopes per box