Reliable press-and-seal envelopes for secure mailing, ideal for office and business use. Each box contains 30 envelopes, measuring 4 1/8 in x 9 1/2 in. • Press-and-seal closure for convenience • Standard size for business correspondence • Durable construction for secure mailing • 30 envelopes per box, 7 boxes Box dimensions: 4 1/8 in x 9 1/2 in 210 envelopes total.