【Strong Double Clip】Made of strong and durable PP material, the folder has a horizontal clip and vertical clip that can hold 1-100 sheets of A4 paper. The clip has rubber sleeves at both ends to increase friction and even hold a piece of paper firmly. Flat and solid, lightweight and waterproof, with matte texture and wear resistance. 【360°Folding】The folder can be folded 360° and can be used as a writing board or standing up. It can be adapted to your work needs. You can write upright even if you work in a small room or without a desk. 【Waterproof & Dustproof】Made of high quality PP material. Thick cardboard material (1.8mm), matte texture, odorless, non-toxic, corrosion resistant and shockproof. The edge lines are smooth, without edges or corners, and do not cut your fingers. Metal binders are durable and securely hold papers, receipts, orders and other documents. Standard Size: 320mm (H) x 240mm (W) x 10mm (D) Weight: approx. 220g/0.8oz A4 format (210 x 297 mm). There is a hole in the top of the backrest to store the pens individually. Easy to carry. 【Wide Range】The A4 folder measures 31.5 x 24.5 cm and can hold up to 100 standard A4 documents. Suitable for schools, workplaces, seminars, construction sites, interviews and more. business meetings, medical applications, teaching meetings, landscape sketches, etc.