【Part Number】Spool Ratchet Lever Replacement Part 59843700,598437-00,714394862341. 【Compatibility】Trimmer lever compatible with Black and Decker ST7700 ST7000. 【Automatic Line Feeding】Line feeding lever 59843700 releases the cutting line from the spool during automatic wire feeding, which greatly saves your time and is an important part of the trimmer. 【Tough Material】The trimmer replacement lever assembly is made of ABS and metal material, wear-resistant and tough,with a long service life. 【Good Service】8 Pack 59843700 Replacement Lever Assembly.Product from will enjoy 30 days Money-back and 18-Months Worry-free Warranty.If you're not sure whether it fits your model, please email us-includes your Models and serial number. 【Part Number】Spool Ratchet Lever Replacement Part 59843700,598437-00,714394862341. 【Compatibility】Trimmer lever compatible with Black and Decker ST7700 ST7000. 【Automatic Line Feeding】Line feeding lever 59843700 releases the cutting line from the spool during automatic wire feeding, which greatly saves your time and is an important part of the trimmer. 【Durable Material】The trimmer replacement lever assembly is made of ABS and metal material, wear-resistant and durable,with a long service life. 【Good Service】8 Pack 59843700 Replacement Lever Assembly.Product from will enjoy 30 days Money-back and 18-Months Worry-free Warranty.If you're not sure whether it fits your model, please email us-includes your Models and serial number.