Designed for use with WireBind machines, these GBC silver A4 6mm binding wires enable the permanent binding of documents and reports for a stylish, polished result Made from strong and durable double-loop wire, these 34 loop binding wires ensure documents remain both tamper-proof and intact Wires are pre-cut to A4 size and come with turned ends to prevent sheet loss Colour co-ordinate with front and back covers for a truly professional finish