Specification Brand : OUKENS BulletPoint1 : Premium ABS material: The lawn trimmer head made of high-quality ABS material is durable, wear-resistant, flexible, not easily damaged and has a long service life. It has been tested for performance, safety and quality. BulletPoint2 : Size: The thread size of the lawn trimmer head replacement part is M14 x 1.5 mm, the diameter is 16 cm, the gross weight is 677 g/23.9 ounces, and it is suitable for trimmers and brushcutters. BulletPoint3 : Part Number: The part number of this replacement brush cutter head is ST 4002 710 2170 and replaces the old part number 40027102107. It can be used for mowing lawns, removing weeds in corners or between bricks, removing moss from walkways and removing weeds on sand and gravel. BulletPoint4 : Exquisite craftsmanship: The brush cutter head replacement has exquisite technology and its high-precision design contributes to better performance. It is not easy to break even when it hits stones or stumps. BulletPoint5 : Practical: This lawn trimmer head can effectively extend the service life of the machine with stable performance and fits your machine perfectly. Designed for most weed trimmers and is a great replacement for the lawn trimmer head that is difficult to load. ExternallyAssignedProductIdentifier : 9350863631707 ItemName : Dual Line Trimmer Head, Trimmer Head Replacement for Stihl AutoCut String Trimmer C26-2 FS55 FS56 FS70 FS94 FS91 FS111 FS131 FS240 4002 710 2137 Brushucutters Weed Eater ItemPackageDimensions_Height : 17.4 centimeters ItemPackageDimensions_Length : 6.7 centimeters ItemPackageDimensions_Width : 14.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : string-trimmer-replacement-parts Manufacturer : The ROP Shop Material : Plastic ModelNumber : OUKENSrqguci3164 PartNumber : OUKENSrqguci3164 PowerSourceType : battery ProductDescription : Specifications: Condition: Brand New Material: Plastic Color: Shown as picture Replace OEM Number: 4002 710 2137 / 4002 710 2169 Diameter: Approx.14cm/5.5in Fitment: Fit for Stihl Autocut FS 55/56/70/94/91/111/131/240, FS 90/130, FR 131/460