Ryobi Expand-It ZR15520 Pruner Attachment For String Trimmers (Certified Refurbished) This Certified Refurbished product is tested & certified by Ryobi to work like-new but may have scuffs, scrapes and dirt. The product includes all original accessories, and is backed by a 1 Year warranty. Attachment Only - Compatible power base NOT included Steel gears offer durability Lubricates chains automatically for convenience Included extension shaft for extra reach up to 12 ft.