Like the other Trimmer Plus attachments Ryobi offers, this one turns your trimmer into yet another tool. Snap on the tree pruner, with or without the extension boom, and make short work of tree trimming and shaping without setting foot on a ladder. Aggressive blades work at 2,000 strokes per minute, chomping through branches up to 4 inches in diameter. Because of its length, it does affect the balance of the tool in hand, but with a little getting used to, it works like a charm.--Kris Jensen-Van Heste
From the Manufacturer
The add-on tree pruner will prune branches up to 4 inches in diameter and operates with 2000 strokes per minute. Extension boom allows for extended reach for hard to cut branches. Heat-treated powdered metal gearing for dependability. The Click-Link shaft allows the user to add-on or take-off the attachment in seconds. Only Ryobi offers the TrimmerPlus System that turns a grass trimmer into a complete lawn and garden system. Can be used with any Ryobi TrimmerPlus unit - electric, 2-cycle or 4-cycle. Two-year warranty.