Dental Floss......... No j/k.. found Parks chain tool works good along with Dawn dish washing liquid and VERY hot water in the machine; works quite well for a low effort job. Use LOTS of water after its clean to flush out the chain pieces parts. Then I dry it with a hair blow dryer and get it nice and hot and next, apply Pedro's Ice Wax. I do it after every ride, generally each are at least 50 miles + , and last summer she went about 3,000 miles and LBS says chain shows hardly any wear. Works 4 me...... :-)