Features: The dimensions of this grass trimmer replacement blade are: 84 mm long, 20 mm wide, large hole diameter 12 mm, small hole diameter 7 mm. This replacement blade grass trimmer made of metal comes in a set of 10 and is packed in a box so you can easily access it at any time This replacement blade cutter is suitable for most lawn mower models on the market, such as FRT18A, FRT18A1, item 46155, FRT20A1, IART 2520 and IAT 20-1M, etc. Please note that you can carefully check whether the blade size suitable for your lawnmower matches this product before placing your purchase, so that you have the best experience with our products. You do not need a special tool to perform this blade replacement, and the grass trimmer replacement blade can be installed just like a plastic blade. You can focus on cleaning your lawn, patio or garden and save time and energy. Specification - Product name: grass trimmer knife metal. - Material: stainless steel. - Size: 84mm long, 20mm wide, large hole diameter 12mm, small hole diameter 7mm - Quantity: 10 pieces in a set. - Compatible models: This replacement blade cutter is suitable for most lawn mower models on the market, such as FRT18A, FRT18A1, item 46155, FRT20A1, IART 2520 and IAT 20-1M, etc. Please note that you can carefully check whether the blade size suitable for your lawnmower matches this product before placing your purchase, so that you have the best experience with our products. Package includes: Grass trimmer knife metal set of 10.