Leitz Standard ring binder. Highly resistant cover made of 30 % pre-consumer recycled PP film and PE-laminated paper on the inside, on sturdy 90 % post-consumer recycled cardboard for increased durability. With a transparent pocket (PP) on the spine and a spare spine label. Capacity for up to 250 sheets (80 g/m²). Mechanism: 4-D rings with push bar. Ring diameter: 25 mm. Ring capacity: 20 mm. Spine width: 41 mm. Material: Cover made of 30 % pre-consumer recycled PP film and PE-laminated paper on the inside, on sturdy 90 % post-consumer recycled cardboard.