These are left hand or counter clockwise rotation blades. The blades are 20 3/16" long with a 1/2" round hole in the center. Set/3 60 Left Hand Finish Grooming Mower Blades for Big Bee Replaces FM04-2A. Check out our entire store for more great products and deals!We do however make every possible attempt to accurately describe the inventory we sell and stand behind it. Since 2016, 8TEN Industries has been a leading asset recovery provider supporting national retailers, brands, and manufacturers. Our 60,000 square foot processing and distribution facility located in Cass City, Michigan has allowed us to become industry leader in turning difficult problems for manufacturers into great deals for our customers.