Stens 385-203 Trimmer Head Spring Replaces Echo: 215603, Shindaiwa: 99909-15520, Stihl: 0000 997 2800 Fits compact twist feed and heavy-duty twist feed trimmer headsBump feed and Pro Bump Feed Use with our 385-272 Trimmer Head Spool This is a Stens replacement part Part Number 385-203 This is an aftermarket of generic part