White 25mm 4D Presentation Binder (Pack of 10) WX01325With an easy to open 4D ring mechanism and an approx. 40mm spine width, it is great for everything from presenting projects to archiving to simply tidying up the odd papers around your office. The PRB ring is a 25mm 4D ring which has a maximum capacity of up to 250 sheets. A pocket on the front and the spine allows you to add your own labels. Hard wearing and practical Ideal for home and office filing Perfect for A4 paper 4D ring mechanism keeps pages