BUR181 BUR141 DUR181Z DUR141Z DUR140 DUR141 DUR180Z DUR181Z. 1 Spool Head+1 Spool Cover+1 Compression Spring. 3 Spool Head+3 Spool Cover+3 Compression Spring. Material：Nylon. It has a low profile design to efficiently cut grass with less drag and the line is quick and easy to attach and remove.
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