Ryobi ZRRY253SS 25cc 17 in. Full Crank 2-Cycle Straight Shaft Gas String Trimmer (Certified Refurbished) Full-crank engine for 2x longer motor life Attachment capable and will accept universal brand fit attachments ZipStart carburetor for easier and more consistant starting Reel-Easy bump-feed string head for faster reloads Dual 0.095 in. line cutter style