Amazon.com : AC80RL3 String Trimmer Replacement Spool Line 080 Inch Twisted Line Compatible with Ryobi One Plus+ AC80RL3 18v, 24v, and 40v Cordless Trimmers ,Weed Eater String Auto-Feed Spool Line 11ft(8-Pack) :
RYOBI 0.095 in. x 16 ft. Pre-Cut Spiral Line (5-Pack) AC04149 - The Home Depot
Juslike String Trimmer Replacement Spool Line 0.065'' for Ryobi One+ 18V, 24V, and 40V Cordless Trimmers(6 Spools + 1 Caps) - Walmart.com