COMPATIBLE WITH STRING TRIMMER: Weed wacker string replacement compatible with Ryobi One + multiple weed wacker models: 18V, 24V and 40VDIAMETER & LENGTH: High quality 0.065in diameter and 11ft. long string trimmer refill cuts through grass and weeds with easeAUTOMATIC FEEDING SPOOLS: Automatic feeding system to change spools eliminates the time-consuming task of manually winding the line. Makes mowing the lawn easier and more convenientABRASION RESISTANT: The weed eater string is made of improved nylon polyamide material with a tensile strength of over 100 lb, which is 30% more durable than other brands and lasts longerMORE DURABLE: The string trimmer line spools are made of the latest materials, which have the ability to withstand the high speeds of the weed wacker and therefore have higher durability
