The sheet is designed for storing6 Bon (banknote) OR OTHER collection MATERIAL(envelopes, postcards, old photos). Size of collection material to 178х75 mm, the thickness is not more than 0.3 mm.
Transparent cells are positioned with 2 sides separated by a BLACK SHEET, i.e., the collection MATERIAL is VISIBLE FROM ONE SIDE.
The transparent cell is MADE OF a RIGID FILM of HIGH TRANSPARENCY.
Sheet size standard "OPTIMA" 200х250 mm with mounting on 4 rings.