fences. About durabilityMade of PA6 . Soak the blades in water the night before use to make them last longer. Quantity 50 plastic blades for Ferrex Aldi lawn trimmer, perfect replacement for the original blades. FourShow pack of 50 replacement blades compatible with Ferrex lawn trimmer Aldi Far 20i, plastic blades for cordless lawn trimmer Ferrex FourShow 50 pieces replacement blades compatible for Ferrex lawn trimmer Aldi Far 20i, plastic blades for cordless lawn trimmer Ferrex Material plastic, length 95mm. Suitable for Ferrex lawn trimmer aldi battery 20V 40V, FAR 20ia FAR 20na Good for grasses and thin brush, not for seedlings or other hard material. For optimal use, avoid using this accessory for edges, working next to bricks, chains or wooden fences. About the blade material Made of PA6 , put the blades in warm water the night before use, they will last longer. Quantity 50 plastic blades for Ferrex aldi lawn trimmer, perfect replacement of the original blades.