Size :1''-12'' 
Material: malleable steel 
Cold down steel screws with smoothly rolled threads 
Steel sliding -pin handles for secure hold 
Bright plated steel swivels ,securely fastened to screws and revolves freely 
Frame surface : powder coated 
Optional surface finish for screw bar and swivels : 
Black finish 
Zinc plated 
Chrome plated 
Nickel plated 
Copper plated 
Opening :1-12'' 
Throat depth 3/4''-3-3/4''