Perfect for replacing old or spool caps and springs. The spool cover is made of ABS plastic, and the spring is made of high-quality stainless steel, which is durable and lightweight. Easy to use, just remove the old spool cap and replace it with a spool cap. This kit protects the pipeline and holds the spool in place. Spool cover and spring compatible with for Black + Decker trimmer, suitable for the following models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST400, LST420, LST136. Colour: Orange Material: ABS, Stainless Steel Package Contents: 4 x RC-100-P spool cap 4 x RC-100-P spool spring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.