Upgrade your string trimmer with the Aero-Flex 32pack Line Trimmer Blade Refills. These blades are perfect for mowing down weeds and thick grass without worrying about running out of line. With a diameter of .240" and a spool length of 0.6ft, these blades are compatible with most string trimmer models. The Aero-Flex 32pack is easy to install and requires no assembly. The blades are made by Aero Flex, a trusted brand in outdoor power equipment. Don't let a lack of line slow you down, get the Aero-Flex 32pack and keep your yard looking pristine.