What you will get: Package includes 10 cutting spool lines and 2 cutting caps, 12 pieces in total, enough to meet your daily needs and 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 cutting cap is approximately 3 inches/ 7.5 cm in diameter, 1.3 inches/ 3.3 cm in height; Compatible with Ryobi AC14RL3A Quality material: the spools and cutting caps are made of plastic and the line is made of durable polyamide nylon, durable and reliable to apply, flexible and durable; This kind of material can reduce drag and achieve fast cutting Save time and energy: the grass eater twine spool is easy to use and install, the replacement spool of the automatic feed system makes the tedious work of hand-winding bobbins easier; The grass eater reel line uses centrifugal force and aerodynamics to reduce drag and achieve fast cutting, helping you save time and energy Features: Material: plastic spool and durable polyamide nylon thread, flexible and long service life. Easy to use: The replacement coil of the automatic feed system saves you from the tedious work of manual winding. High efficiency: the aerodynamic shape allows less drag for more efficient cuts Compatible with Ryobi: 18V: OLT1825, OLT1825M, OLT1830H, OLT1831, OLT1831H, OLT1831S, OLT1832, P2000, P2001, P2002, P2003, P2004, P2005, P2006, P2200, RLT1825, RLT1825Li, RLT1825 L18, L13, R30, RLT183113, RLT183115, RLT183125, RLT1831H20, RLT1831H25, RLT1831H25, RLT1831H25PK, RLT183213, RLT183220, RLT183225, RLT183225PK, RLT2925. 24V: RY24000, RY24020, RY24021, RY24200. 40V: RY40001, RY40021, RY40200, RY40201, RY40210, RY40210A. Specifications: Material : plastic and nylon Size: as pictures show Color: as pictures show Quantity: 12 pieces Package includes: 10 x Trimmer Spool Line 2 x Cutting caps