Never used product, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working order, warranty available. Good for grass and thin brush, not for young trees or other hard materials. For optimal use, avoid using this attachment for edging, working with bricks, chains, or. Suitable for cutting;;; Ryobi RAC155 RAC157 Trimmer. About Replacement Blades: Made of PA6 (nylon), put the blades in water the night before using, they will last longer. About Replacement Blades: Made of PA6 (nylon), put the blades in water the night before using, they will last longer. Quantity: 100 replacement blades for RAC158, perfect replacement blades for the original blades. Material: Plastic, Length: 67mm. Attention: Due to the different monitor and light effect, the actual color of The item may be slightly different from the picture shown.; ;Thank you! Note: The data are all manual measurements, please allow an error of 1 - 3cm, due to the difference in light and