Roller Chain: (10) Feet of #41 with a Master link, 1/2&rdquo; Pitch (Center to Center), 1/4&rdquo; Wide x 7/16&rdquo; Roller chain: (10) feet of #41 Master link, 1/2" pitch (center to center) 1/4" wide x 7/16" thick and pre-greased for your chain-installing convenience.