The tit vice clamp has a unique lever design that allows you to really pile on the pressure.  The clamp is not spring loaded - it is the turning of the screw that applies the pressure - so you decide how much pressure to apply.  Black metal finish with rubber coated flat pads, connected with a steel chain.  Give them a tug and they'll hang on tight!

• rubber coated flat pads

• non-slip even pressure

• adjustable pressure screw

• metal chain

• medium - hard grip