What you will get: package includes 10 pieces of cutting spool lines and 2 cutting plugs, 12 pieces in total, enough to meet your daily needs and for replacement Size detail : Each roll of the grass trimmer replacement spool line measures approx. 11 ft/ 3.4 m in length and 0.065 in/ 1.65 mm in diameter; The cup cap is about 3 inch/ 7.5 cm in diameter, 1.3 inch/ 3.3 cm in height; Compatible with Ryobi AC14RL3A Compatibility: Compatible with Ryobi 18V, 24V and 40V cordless mowers, including 18V of OLT1825, OLT1825M, OLT1830H, OLT1831, OLT1831H, OLT1831S, OLT1832, P2000, P2001, P2002, P2003, P2004, P2005, P2006, R2225, R2225 , RLT1825LL13, RLT1825M13, RLT1830H13, RLT1830H15, RLT1830H25, RLT1830Li, RLT183113, RLT183115, RLT183125, RLT1831H20, RLT1831H25, RLT1831H25, RLT32 24 V de RY24000, RY24020, RY24021, RY24200; And 40V of RY40001, RY40021, RY40200, RY40201, RY40210, RY40210A Quality material: the spools and trimmer caps are made of plastic, and the line is made of durable polyamide nylon, which is durable and reliable to apply, flexible and durable; This kind of material can reduce drag and achieve fast cutting Save time and effort: grass eater string spool is easy to use and install, the replacement spool of the auto-feed system eases the tedious work of hand-wound reels; The grass eater reel line uses centrifugal force and aerodynamics to reduce drag and get a fast cut, helping you save time and energy