roll-on
US /ˈroʊl.ɑːn/
UK /ˈroʊl.ɑːn/

1.
a type of deodorant or antiperspirant applied to the skin with a ball applicator
:
•
She prefers a roll-on deodorant for daily use.
•
Don't forget to pack your roll-on for the trip.
a type of deodorant or antiperspirant applied to the skin with a ball applicator