RYOBI: 18V ONE+ Line Trimmer Assembly & Use - YouTube
Amazon.com : Vypart 0.065" String Trimmer Replacement fit for Ryobi AC14RL3A with 522994001 Weed Eater Spool Cap Cover fit for Ryobi One 18V, 24V, 40V Cordless Trimmers(6 Spool + 2 Cap) :
Ryobi 18V ONE+ HP™ 38cm Brushless Line Trimmer - Tool Only - Bunnings Australia
RYOBI ONE+ HP 18V Brushless Cordless String Trimmer and Leaf Blower with Extra 5-Pack of Spools, 4.0 Ah Battery and Charger P20121-AC5 - The Home Depot