Product Overview One wire replacement brush (each) designed for economy Wimshurst machine model SS2310. Please refer to product photo - consists of a threaded center pinion with 2 wire brushes attached. Reviews (2 reviews) Write a Review 2 Reviews Hide Reviews Show Reviews 5 100% all good! Posted by Professor John on Aug 5th 2017 Pleasure to purchase from this company! 5 replacement brush Posted by Ken Fuller on Feb 15th 2014 Recommended. Eventually your brushes are going to wear out and having this inexpensive spare allows you to put your machine back in service quickly.