GLX Ergogrip Binders. Extra wide covers (280x 312mm) to take A4 size punched pockets & extra wide dividers. Durable polypropylene binders designed for frequent heavy-duty use. Available in a wide choice of great colours, these Swedish-made binders have many user friendly features & come with a 5 year guarantee. Four ring/eight crossover prongs finished in matt black for standard colours. Standard colours have brightly coloured spines with black covers. 55mm spine. Holds up to 400 sheets. Packed 2. Green.