This pack of 20 Exacompta Four Ring Binders feature an OPAK cover and are fit for A4 Plus sheets of paper and ideal for everyday use in offices, schools and at home.This pack is made up of 20 ring binders each with four 30mm O-rings and a 40mm spine. Better organise your paperwork or brightening up your office area with this fantastic pack of files.. Flexible covers with spine label . Exterior size 320x268mm for A4 Plus. Opaque PP 0.7mm . Four 30mm O-rings . 40mm spine . Dimensions (mm) H 320 W 268 D 40*Please note that this product is delivered direct from our supplier and may take a little longer to arrive.