- Gives a professional appearance to bound documents. - Premium quality and durable black plastic binding comb. - The most popular, economical and flexible method of binding. - 14mm comb suitable for binding 81-100 page documents. - Pack size of 25. - Suitable for any 21 loop plastic comb binding machine that can bind up to 100 sheets. Features. Rings quantity. 21. Ring diameter. 1.4 cm. Maximum capacity. 100 sheets. Product colour. Black. Material. Plastic. Format. A4. Weight & dimensions. Height. 300 mm. Depth. 14 mm. Width. 14 mm. Packaging data. Quantity per pack. 25 pc(s)