Check the listing for details. FOR EARTH-QUAKE STRING MOWER REPLACEMENT 21.25IN LINE - 30 PACK W. Condition: New. Listed at 16.88 USD. Description: Replaces Part Number: 21884. Quantity: 30 Replacement String Mower Lines. High density material for longer run times. Please note: 1. This is an aftermarket part, not an OEM one. Please make sure it will fit your machine before placing order(s). 2. If you are not sure whether the part will fit your machine or not, please message us and let us know your engine model, machine model, we will help. More information, more helpful. 3. If buyer orders wrong item, buyer will be responsible for return and exchange postage. Thank you for your kind understanding in advance. 4. All items are shipped from US warehouse(s). We usually use USPS to ship parcels. All parcels are picked up within 1 business day, delivered within 3~7 Business days(Online tracking information may be updat.