Exacompta Articulated Rings (Small) Perfect for binding voluminous punched documents. Bag of 10 jointed rings for binding punched documents (25mm) Made in nickel-plated steel Convenient blister pack. Perfect for binding voluminous punched documents. Bag of 10 jointed rings for binding punched documents (25mm) Made in nickel-plated steel Convenient blister pack. 25mm in size