Thefollowing envelopes and sets come with transparent strips made ofrhodoid. So you can immediately identify your stamps, they areillustrated in black and white and follow the chronological order ofissuance. Discover a large choice of countries available to classify your international stamps. Perfect for displaying and admiring your collection with family and friends! Page setting spaced and regular, in accordance to best standards Easy to use with strips made of rhodoid. Strips designed to protect from dust, grip and humidity Perfect colours’ safeguarding Notice : Envelopes and sets marked ´ PROAM ´are composed of neutral inserts with strips together with a descriptionfor stamps’ space. On these sets stamps are not illustrated. 22 perforations. Sets with strips compatible with the following Albums : Supra, Supra Max, Supra luxe and Sigma.