For our 13-ring binder ''DE'' Capacity approx. 30 sheets. For mint-sheets, letters, blocks, etc. Overall size: 270 x 297 mm (10 1/2'' x 11 3/4'') * Many valuable objects such as letters, ETB's, postcards, plate-blocks or booklets, etc. cannot be stored effectively in regular stock-books. * To keep all these safe, Lighthouse has developed a large number of plastic sleeves and stock sheets. * They are offered in a great range of different sized strips, pockets and combinations of both.