Usage Tips:Features:x.xHigh Impact ABS material provides strength durability.xNo tools needed to install.xSnaps in place over spool line.xSnaps into place quickly easily without the need for tools for efficient spool replacement.xProtects your line and keep it in place on your string trimmer.xSolid and durable, long service life.xEasy to install and reliable to use.Specifications:xFitment:For Black and Decker Reflex models:CST1000, GL30, GL120C, GL280, GL301, GL340, GL420C, GL420XC, GL423C, GL425, GL425C, GL425S, GL425SC, GL425XC, GL430, GL430C, GL430S, GL430SC, GL530, GL540, GL544, GL544C, GL545, GL545C, GL545SC, GL547, GL550, GL555XC, GL560, GL560PXC, GL570, GL570C, GL580, GL580C, GL1825, GL2500, GL4525, GL4525SB, GL5028, GL5028SB, GLC13, GLC14, GLC120, GLC1423L, GLC1825L, GLC1825N, GLC2000, GLC2500, GLC2500L, GLC2500NM, GLC3000, GLC3630, GLC3630L20, GLC3630L20-GB, NST1810 Similar To Part No 39 s: 374746/01, RC-100, 374446-01, 5104183-01 BD036xColor:As Pictures ShowPackage Contents:2 x Spool Cover CapNote: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.,