Precision Compatibility: our mower blade replacement kit is engineered exclusively for 21 inch dual blade lawn mowers (compatible with LM2130SP, LM2150SP and LM2160SP); Exact specifications ideal fitment and optimal cutting performance, so as to improve the working efficiency of the lawn mower blades High Efficient Design: our lawn mower blade repair kit is made of quality metal materials, and its excellent coating material makes it more ; Specially designed fans can improve airflow, prevent grass debris accumulation and overheating, while precisely machined bolts and nuts can maintain appropriate blade tension, thus achieving cleaner mowing and reducing vibration Performance Enhancement: if the lawn mower has a slow mowing speed and reduced working efficiency, it might be caused by loose parts on the blades; Our quality replacement kit for dual blades plays a fixing role, which can the lawnmower maintains stable performance under any conditions, enable you to mow the lawn faster and more easily Easy Installation: just one tool wrench is needed to unscrew the old nut on the lawn mower blade, then insert the bolt into the diamond shaped hole of the blade and fix it with the included washer; The blade accessories of the lawn mower can be replaced quickly, ideal for daily maintenance between mowing seasons, saving both time and effort Color: White Material: plastic Different batches, the color of the accessory screws is random and does not affect, Not accepting designation Package Contents: 1 x Lawn Mower Blade Part Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.