Specification Brand : echosari BulletPoint1 : Echo Speed-Feed 400 Universal for String Trimmer Head / Part #: 99944200907 BulletPoint2 : IT Fits ECHO and other competitive brands. BulletPoint3 : Fits SRM Straight Shaft Trimmers BulletPoint4 : The ECHO Speed-Feed 400 Universal Trimmer Head can be reloaded fast and painlessly saving you time and stress. No disassembling! With the ECHO Speed Feed Head, there are no stiff tabs to press in, tricky covers to remove, or spring flyaway events. Just run the line through it, wind it up and you are ready to go! The Speed Feed Head reloads FAST. (in under 30 seconds & just 3 easy steps) BulletPoint5 : Package Qty: (1) String Trimmer Head ExternallyAssignedProductIdentifier1 : 706919823340 ExternallyAssignedProductIdentifier2 : 0706919823340 ItemName : Echo Speed Feed 400 Universal Trimmer Head / 99944200907 ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 1 ItemTypeKeyword : string-trimmer-replacement-parts Manufacturer : Echo NumberOfItems : 1 PartNumber : 99944200907 ProductDescription : ECHO Speed Feed 400 Trimmer Head with LH1 Adapter (For Use Only with the MARUYAMA Machines Listed Below!) Part # 99944300907 FOR USE ON THE FOLLOWING MACHINES: MARUYAMA BC220DL BC221DL ProductExpirationType : Does Not Expire SupplierDeclaredDgHzRegulation : unknown UnitCount : 1