The Trimmer Plus PS720 Pole Saw Attachment is and add-on to your attachment-capable string trimmer with no tools. Perfect for pruning and cleaning up your trees and hedges. The add-on TrimmerPlus PS720 pole saw can be used to trim branches on trees without using a ladder. The 8-inch bar and chain is lubricated with an automatic oiler to maintain peak cutting performance while providing effective overhead cutting.