Strong type. Can be used in marine pollution. Easy to use basic size. Eco Mark Certification Number: 08105005 (90% unused fibers) Size: 0.16 x 19.7 inches (4 x 50 x 50 cm); Weight: Approx. 2.9 oz (84 g) / Quantity: Approx. 15 times (1.2 L) / Case Weight: 100 sheets / Case Weight: 2.9 lbs (8.4 kg) / Case Weight: Approx. 120 L) 30mm