Ultra-smooth and acid-free, transparent tracing paper for plotters. Made from natural fibers, complies with ISO standards regarding weight, thickness, moisture, strength, transparency, tear resistance, and pH levels. Product: Transparent Tracing Paper for Plotters Format: A3 Weight: 90gsm Packaging: Pack of 50 sheets Finish: Smooth surface Sustainability: Recyclable / PEFC Certified Transparency: 75% Chemical Properties: Acid-free (pH Neutral) ISO Standards: 536, 534, 287, 8791-2, 2469, 1974, 6588 Color: Transparent / Clear