- Sleeves for archiving small-format negatives ,- To protect your valuable negatives from external influences ,- For 40 individual negatives or un-framed slides, 24 x 36 mm ,- Clear ,- For 35 mm film (135) - Foil Thickness: 80 μ ,- Material: Polypropylene (PP) ,- Number of Negatives per Sleeve: 40 ,- Number of Sleeves: 25 ,- Possibility of Filing: Ring Binder DIN A4/Suspension Files ,- Sheet Length: 300 mm ,- Sheet Width: 230 mm 2 years legal warranty only