• Multi-compatibility: Trimmer head compatible with various Black & Decker models, including GL280, GL301, GLC13, GLC2500, GLC3000, GLC3630L, GLC425, GL430, GL530, GL540, GL544, GL545, GL555, GL560, GL570, GL580, GL4525, GL5028, GLC1423L, GLC1825L, GLC1825N. • Updated blade accessories: This replacement head can only be used with plastic blades, not trimmer spools. Includes 10 plastic blades that are more durable and cut faster than cutting wire. • Durable material: The trimmer head is made of nylon material, making it more resistant and durable. • Easy installation: Insert the trimmer head into the Stinger base and it automatically locks with the side snap buttons, no adapter needed. • Optimal use: Avoid using this accessory for edging and work along brick, chain, or wood fences. Stay away from stones or other hard landscape elements to prevent the blades from breaking. • Important note: The blades are suitable only for cutting weeds on horizontal surfaces. For vertical cuts, it is recommended to replace the blade with a trimmer spool.