Pavo A4 9.5 mm Premium Wire Binding Spines Black (Pack of 100), Bind Capacity: 51 80 Sheets

Ideal for creating professional, high-quality documents with permanent binding; compatible with all 3:1 pitch wire binding machines 9.5 mm wire spine for A4 documents, binds 51–80 sheets; 34-loop double-wire construction provides extra strength and stability Pages rotate 360 degrees and lay flat for easy reading, note-taking and photocopying Compatible with both square and round 3:1 pitch punched holes for versatile document binding Durable metal wire construction securely holds pages together for a neat, long-lasting finish Economical pack of 100 black wire binding spines, ideal for office, school and professional use