How much does this cost to the nearest dollar?

Ferrofluid Bolt Kit
You've seen this picture in our catalog and on the web... now here is your chance to reproduce it! Our Ferrofluid Bolt Kit comes complete with everything you need to create the amazing field spikes seen here. Each kit includes 50 ml Ferrofluid, special ferrous nut and bolt and magnets. Makes a great demonstration. Can be used again and again. Notice While Ferrofluid is amazing, it is also very messy stuff. Rubber gloves, safety goggles, and protective clothing should be used. Close adult supervision required. Our Ferrofluids are intended for educational and demonstration purposes only. They are not designed for use in loudspeakers or any other device. Sorry, we do not carry any Ferrofluids designed for such purposes. Related Products

Price is $44.00
Price: $43.95