Sample Envelopes, 4 x 7". Case of 1,250

Sample Envelopes, 4 x 7". Case of 1,250

Sample Envelopes, Case of 1250. Size: 4 x 7". Envelopes have a soft metal, fold-over, locking tab. 32 lb. Kraft paper is resistant to breakage by small rock samples. Positive seal at all glued surfaces.