number 10 white envelopes, self-seal, security tinted envelope, no moisture required - windowless - ideal for home, office secure mailing - quick-seal closure - 4-1/8 x 9-1/2 inches - (100) quality mail <b>quality-mail #10 envelope, peel & seal, security tint, 250 per box</b><br> ideal for home or office, the all-purpose quality-mail #10 envelope, peel & seal, security tint, 250 per box makes an excellent alternative to low-quality envelopes that tear easily and offer little security. each #10 envelope measures 4-1/8 by 9-1/2 inches, which nicely accommodates a variety of paper sizes, including standard 8-1/2-by-11-inch sheets of letter-size paper folded into thirds. whether it’s for personal or professional use, quality-mail security envelopes make it easy to mail with confidence.