Envelopes / Bags of recyclable plastic of high resistance, waterproof and opaque. They have incorporated a strong adhesive of high fixation. Its 'touch paper' surface allows manual writing. Customization from 1,000 units. STANDARD MEASURES: Model C: 18 x 25 Model F: 25 x 36 Model A3: 30 x 40 Model Pouch: 40 x 50 cm