General description Set of 10 replacement blades compatible with Ferrex Aldi FAR 20-i Edge Cutter. Designed for use with Ferrex edger battery models 20V and 40V. Technical specifications Material: PA6 (nylon) Length: 95 mm Quantity: 10 blades Usage Ideal for cutting thin grasses and brush. Avoid using on young trees or hard materials. Not recommended for edging work with bricks, chains, or wood fencing. Other information For enhanced durability, soak the blades in lukewarm water the night before use.