Salon supplies (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">salon supplies</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rollers that I've seen before include "expensive cars" , "Long heavy sea waves" , "They may be used to paint" .)