Three pack - stock up and save an extra trip to the store with a three pack of . 065 inch string trimmer spools Made for string trimmers - maintain your string trimmer s. Help keep your string trimmers ready to take on the next job Quality CRAFTSMAN construction - purchase with confidence and get the job done Smooth and reliable - get reliable functionality and smooth performance with factory wound spool For use with - cmcst900, cmesta900, cmeste920, and cmcst98020 series CRAFTSMAN WEEDWACKER string trimmers