Black boom adjustment ring for Unifiber booms, holding the MK 20 double-pin locker. Compatible with :

- UF012020210 Carbon HD Monocoque V2 190-240 Outside Wide Tail

- UF012020220 Carbon HD Monocoque V2 220-270 Outside Wide Tail

- UF012020260 Carbon Elite Monocoque V2 190-240 Outside Wide Tail

- UF012020270 Carbon Elite Monocoque V2 220-270 Outside Wide Tail

Previous collection:

- UF012010210 Carbon HD Monocoque 190-240 Outside Wide Tail

- UF012010220 Carbon HD Monocoque 220-270 Outside Wide Tail

- UF012010260 Carbon ELITE Monocoque 190-240 Outside Wide Tail

- UF012010270 Carbon ELITE Monocoque 220-270 Outside Wide Tail