Features： *FITS MODELS: Fits for Ryobi One+ series cordless trimmer models. Spool model: RAC143. Compatible with RL6B33 & RY36L3A-0. *CONVENIENT: Tool-less installment, pops in and out of trimmer for ease of use. Use centrifugal force and aerodynamics to reduce drag and achieve fast cutting. *FLEXIBLE & DURABLR MATERIALS: High-quality ABS spool &polyamide nylon thread, flexible and long service life. *EASY TO OPERATE: Auto feed system replacement spool help to ease the tedious work of hand-winding spools. *PRECAUTIONS FOR USE: Wear safety and long pants when using this product to avoid injury from spilling lines. This cordless eater parts refill is only suitable for young grasses. Strong weeds use other tools such as blades to trim. Specifications： *Colour:black + fluorescent green *Material:ABS, nylon Package Contents: 3* Replacement Spool Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Used for edging and shaping Grass Trimmer Spool Replacement Spool Line Cleans borders along sidewalks and driveways Strong and efficient For heavy-duty use and for yards with thick weeds