Stainless steel (AISI 316 alloy) slide over adapter.
The adapter can be fitted over an existing mast and locked with 3 bolts. There are 2 sizes available, the 60 for masts up to Ø 56 mm and the 76 for masts up to Ø 72 mm. The Holland Aviation swivel frames perfectly fit in the adapters.
The slideover adapters are self centering