The Arnold Company has created this Universal 21 blade to suit your lawn cutting needs. Crafted from highly durable steel this blade is meant to last the whole season. You will need a wrench to loosen the blade bolt in order to change out the old with the new but this item does include adapters that would be needed to attach the blade to the mower. This item is deemed a wear and tear product which means that there is not a warranty included with the purchase. Created to fit brands from Husqvarna to MTD to Huskee this well-crafted blade will not disappoint you during lawn cutting time. The dimensions are 21 L x 2.25 W x 1.12 H and the weight is 1.8 lb.