Tool 17-156 14 by 8-Inch Combination Blade for 36-Inch Power Trowel, 4-Pack. The largest selection of tools manufactured to the highest quality standards. Leader in professional construction tools. High carbon content provides abrasion resistance for longer wear. Set of four blades. Specially formulated hardened and tempered spring steel. Make your power trowel brand new with this replacement set of blades. If you receive an item and it doesn’t work properly or you don’t like it because of any reason at all. Please wait for the result of cancellation. The order will be processed and completed by automatic warehouse system within 5 minutes. Sending direct message to cancel the order is not allowed for every case. For the return case.