This set is for 3 small 6" burners 1500 watt 4 turns & 1 large 8" burner 2100 watt 5 turns.
The turns are how many times the coil goes around in a circle.
These burners fit most ranges except GE/Hotpoint.
They are plug in type, they plug into a plastic receptacle.
We also have the receptacles if you need them, they sell for $4 ea.
These burners have been used since the late 60's, they are a standard fit.