___ in, curbs (5)
I believe the answer is:
reins
(Other definitions for reins that I've seen before include "Straps for controlling a horse" , "Harnesses" , "Control for horses" , "Rider's straps" , "Bridle straps" .)
I believe the answer is:
reins
(Other definitions for reins that I've seen before include "Straps for controlling a horse" , "Harnesses" , "Control for horses" , "Rider's straps" , "Bridle straps" .)