One set of three new replacement knurled thumb nuts and washers used on all terminals of early model AR speakers. Also for some KLH models and other manufactures. You will typically need two sets for a pair of speakers. Original nickel plated brass thumb nuts used on all early model AR speakers are no longer available. However, we have located a source of stainless steel thumb nuts and washers. Other wise, these are identical to the origi...nals. The advantage, these will never corrode.Please visit our entire store. If you would like to be advised of new and exceptional additions along with our sales, please sign up for our Newsletter.