Compatible Models: Compatible With Decker Black Trimmer: Gh900, Gh600, Lste525, Lst300, Besta510, Lcc340C, Lst522, St8600, St7700, St6600, Nst2118, Nst2018, Nst1118, Nst1118, Mst912, Mte912, Mte20225T, Lste20225, Lste20225, Lste20225 , Lst140C, Lst136W, Lst136B, Lst136, Lcc222, Lcc221, Lcc140, Gh912, Gh610, Gh500, Gh400, Cst2000, Cst1200, Cst1000, Cst1000, Beste620, Beste512. Black + Deacker Protective Cap, Cap Model: Rc-100-P, Part Number: 385022-03. Compatible With Af-100, Af-100-3Zp, Af-100-Bkp, Af-100-2 Coil Models.Material: Abs Material, Strength And Durability. Easy To Install, No Complicated Processes.Advantage: Bayonet Design Base Based On The Original Trimmer Structure, Holds The Spool In Place, No Tools Required, Tighten The Spool And Keep It In Place. Safety While Mowing.Use: It Protects The Line And Keeps The Spool In Place.