Avery Dennison Office Products on Tuesday announced a new page of its Web site that provides “a one-stop shop” for labels and postage.

Called the Avery Mailing Center, the site offers postage services in partnership with Stamps.com and also features labels, product information and how-to articles. Some sections include software for mail merges or computerized postage.

Avery Dennison Office Products, in Brea, is a division of Avery Dennison Corp., a label technology company, in Pasadena.

Avery Dennison closed down $1.27, or 5 percent, at $25.75 per share. Shares of Stamps.com, a Los Angeles custom postage technology company, declined 27 cents or 3 percent to end the day at $8.56 per share.