This #4237 Chevy rubber hood side bumper is used on all 1940 through 1948 Chevy cars. There are 4 used on each side of the hood. Possibly used on other GM makes for those years. It is used between the side edge of the hood and fender to prevent movement of the hood or fender from damaging the paint. Good quality rubber American made and fits well.
Something to consider when thinking of rubber bumpers like this one. The auto makers, like GM, used these rubber bumpers to eliminate rattles, stop paint scratching and help align the body parts. My point is don’t thing they are not needed. After all the work you put into your car these are the finishing touch that makes the difference.
Belair Auto Parts has a wide assortment of rubber bumpers, rubber insulators and suck.
Elsewhere listed you will find complete rubber bumper kits which will be listed as for what parts of the car they are for. (example: hood bumper set or door bumper set or complete car bumper set)