• 4-ring binder (35 mm) with simultaneous opening designed for school organization. • Includes 100 sheets with a 5 mm grid and 90 g/m² extra-opaque paper. • Lateral color bands on the sheets for personalized content division. • Contains 4 translucent plastic dividers in blue, yellow, red, and green. • Elastic band closure system to ensure internal security. • Equipped with a compressor to prevent movement of the sheets during transport. • Includes a transparent document envelope with capacity for 50 sheets and Velcro closure. • Measurements: 28 × 32 × 4 cm (280 × 320 × 40 mm).