A3 (420mm x 297mm) 4‑Ply NCR Form – 500 Sets High‑quality carbonless copy paper forms designed for professional business use. Each set includes two plies (duplicate sheets) suitable for invoices, receipts, and order forms. Optional finishing features include Perforation for easy tear‑off, File Holes for binder storage, and Numbering for tracking. Ideal for companies requiring reliable multi‑copy documentation.