Avery Filing Labels - 5366 - Template - 30 labels per sheet Avery ® Filing Labels Template. with TrueBlock™ Technology for Laser and Inkjet Printers, 3-7/16" x ⅔" 5366. Avery Design & Print. Add logos, images, graphics and more; Thousands of free customizable templates; Mail Merge to quickly import entire contact address list;