Herder MSL300 knife back to suit OEM: 9571.0518. (81.30.06) (3 Metres). We have 6 of these knife backs in stock. Please get in touch with any queries regarding this part or our range of flails. Not everything we sell is listed on e-Bay. If you can’t see what you are looking for here, we may have it! Parcelforce (Scotland / Northern Ireland). UK customers should expect to receive their orders within 1-3 days. The following postcodes may take an additional day: AB, BT, IV, KW, PA, PH, all Islands. Just drop us a message. However, if you have any issues regarding your order, we have a dedicated team who will be happy to help and resolve any issues. All VAT invoices will be sent with the goods.