Ah, you mean boom grommets. I am not aware of anyone selling these for the masses. Usually they are produced by hull manufacturers and only supplied with the hulls.
Stump Fab has some rubber ones. https://stumpfabrication.com/collect...r-boom-collars
Tyler Garrard
NAMBA 639/IMPBA 20525
T-Hydro @ 142.94mph former WR
McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
Tyler Garrard
NAMBA 639/IMPBA 20525
T-Hydro @ 142.94mph former WR
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