Alltrade Powerbuilt 647009 Heavy Duty Engine Cradle Made to be the most reliable tools in the market today Tool solutions for most all situations Built to exceed tool standards Universal mounting holes fit most car and light truck engines Heavy duty steel construction 3 inch ball-bearing swivel casters for easy maneuvering Includes eight 3/8 inch x 16 x 3/4 inch bolts for mounting engines Meets or exceeds ANSI standards