They're known to have experience making boxing rings (5)
I believe the answer is:
ropes
(Other definitions for ropes that I've seen before include "known to be adept?" , "pearls or > onions" , "Lashings" , "Strong cords" , "Ties" .)
I believe the answer is:
ropes
(Other definitions for ropes that I've seen before include "known to be adept?" , "pearls or > onions" , "Lashings" , "Strong cords" , "Ties" .)