5 3 4 x 8 1 4 envelopes July 8, 2019 16 32 64 128 3 5/8 x 5 1/8 envelopes 3 5/8 x 8 5/8 envelopes 3 5/8 x 8 3/4 envelopes 3 5/8 x 8 7/8 envelopes
