Tuff Stuff CNC Machined Snatch Block 10 Ton Winch Pulley 1/4" 20,000lb Capacity Constructed from 1/4" cold rolled press bent steel Heavy Duty CNC machined moving parts 1" shackle pin hole diameter Accepts up to 10.5mm winch cable or rope 20,000lb (10 Ton) Capacity (tested safely to 15 Tons!)