shaving [3]
Range of appliances and accessories used to cut the beard close to the skin.
double-edged razor 
Manual metal razor; it has a double-edged blade that can be replaced as needed.
handle 
Part used to manipulate the razor during use.
collar 
Ring that adjusts the angle of the blade.
head 
End of the razor that holds the blade in place; the head is screwed into it.
double-edged blade 
Disposable blade with two cutting edges doubling the blade’s useful life.
blade injector 
Small metal box containing spare blades.
disposable razor 
Plastic razor with one or more overlapping blades that can be thrown away after a few shaves.