OEMTOOLS 25053 Heavy Duty Harmonic Balancer Puller Set Includes: 3/8 in x 24 in, 5/16 in x 18 in, 3/8 in x 16 in, and M8 - 1.25 x 80mm bolts Floating Swivel Helps Prevent Damage to Shaft Ends 4 Slots in Yolk for 2 or 3 Hole Applications Bolt Circle Diameter: 1-1/2 - 3-1/2 Heat Treated Yolk Forged from Alloy Steel