Consist of two sheets or oriented polystyrene foil welded together along one edge
Foil contains no agent that might prove harmful to stamps
Will not shrink or discolor
100% waterproof
Pre-gummed on the entire back
Strips 265mm Long (10 3/5")
To Fit: U.S. Souv. Sheets
Size: 90mm
Black Back
10 strips per package
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