Inside handle kit with the black knobs & chrome dome knob center.

The Difference between Belair and Impala is bugger all but that shiney chrome dome in the middle of the knob is meant to be on Impala's.. .. and NO shiney chrome dome on Belairs..   BUT. But.. as other GM vehicles used these .. really makes no difference.. but your call.

This 4 door set has the Chrome Dome in the Knobs.

for a 4 door cars & wagons.

......dates back to 1949 and up to 1960 many GM models.