Specification Brand : JRSHOME BulletPoint : Homelite Ryobi D97518 Genuine OEM Part BulletPoint1 : 100% brand-new, never ever been utilized, all parts are tested and quality controlled prior to shipment. BulletPoint2 : A Necessary Replacement Part For Mower: For Echo Speed Feed 400 SRM-225 Echo GT225 SRM-210 Echo Weed Eater Pas210 Pas211 Pas225 BulletPoint3 : Part number # 99944200907 99944200902 ,replaces 78890-30000 ,78890-11000, 78890-18001 (For Echo, You may need to order Shield p/n C550000032) and 78890-18000. BulletPoint4 : Trimmer Head Diameter: 3-3/4" BulletPoint5 : How To Reresting: You don’t take it apart. You spin it until the arrow lines up with the hole. Then you just feed about ten feet of line on each side and spin it. It spools up as you spin. If you have leftover line inside the spool you will need to take the unit off to empty the line. You are supposed to be able to press-in the panels on the side enough to clear the retaining ledge to free the top of the unit to pull out the spool (you have to do this on both sides) Color : Black ExternallyAssignedProductIdentifier : 9117019431716 ExternallyAssignedProductIdentifier1 : 0364061818432 ExternallyAssignedProductIdentifier2 : 364061818432 IsAssemblyRequired : 1 ItemDisplayWeight : 5.44 pounds ItemName : JRSHOME Trimmer Head for Echo Weed Eater Speed Feed SRM211 SRM225 PAS210 PAS211 PAS225 PAS230 PAS231 PAS260 PAS265 Diameter 3-3/4#78890-18001 Best Choice ItemPackageDimensions_Height : 3.5 inches ItemPackageDimensions_Length : 39 inches ItemPackageDimensions_Width : 5.5 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : string-trimmer-replacement-parts ItemTypeName : Pressure washer attachment Manufacturer : JRSHOME Material : Grass MaximumPressure : 4000 pounds_per_square_inch ModelName : E7 ModelNumber : amz20-HYQ NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : GoodFBA-2589-6 PowerSourceType : gasoline ProductDescription : Product description: Replaces Speed feed 400 For PAS-225 (S59511001001-S59511003000) Gas Power Source Attachement For PAS-225 (S59511003001-S59511999999) Gas Power Source Attachement For PAS-225 (S59612001001-S59612022000) Gas Power Source Attachement For PAS-225 (S59612022001-S59612999999) Gas Power Source Attachement For PAS-225 (S86813001001-S86813999999) Gas Power Source Attachement For GT-2200 Curved Shaft Grass Trimmer For GT-2200 Curved Shaft Grass Trimmer For SRM-225 (S03912001001 - S03912999999) Straight Shaft Trimmer / Brushcutter For SRM-280 (S74012001001 - S74012999999) Straight Shaft Trimmer / Brushcutter For 99944200907 Speed-feed 400 Head For SRM-2620 (T87114001001-T87114999999) Trimmer For SRM-2620 (T89415001001-T89415999999) Trimmer For SRM-2620T (T87214001001-T87214999999) Trimmer For SRM-2620T (T89515001001-T89515999999) Trimmer For SRM-2620U (T87314001001-T87314999999) Trimmer For SRM-2620U (T89615001001-T89615999999) Trimmer