Small 3 1/8 Inch Square Envelopes - 50 Pk (White) Envelope size: 3 1/8 inch square (3.125" x 3.125") Quantity - 50 Envelopes Paper Weights: 28/70# text -- 104 gsm Finish: offset vellum (not translucent) Enclosure Size: 3" x 3" or smaller