trimmer line spool with built in cutter

{"cid":"91220729","title":"Heavy Duty Sawtooth String Serrated Trimmer Line Spool for Walk Behind Wheeled Mowers with Built-in Line Cutter","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/ff\/c874146866b9f923bf3fadcb1547-200x200-1.jpg","attrs":{"Price":"\u20ac0.8652-4.33","Model Number":"HH-4042","Minimum Order Quantity":"100","blade type":"other","cutting width":"other","lawn mower type":"other","max cutting height":"other","min cutting height":"other","Place of Origin":"China","Product Type":"Trimmer Line","customized support":"OEM","Product Name":"Trimmer Line","Shapes":"Round, Trigon, Square, Star, Hexagon, Heptagon,square twist etc.","Application":"Grass cutting","OEM":"Accept"}}