Mounts, glued on bristol sheet, will allow you to visualise in a hand-turn both parts of your documents or stamps. You can easily study stamp hinge marks, gum quality, watermarks, silk thread…without any handling. What a comfort for the safety of your stamps! . . Batch of 10 . 5 strips . Size: 20x4,7 cm . Compatible with the SUPRA, SUPRAMAX, SUPRALUXE, SIGMA ranges.