Product details:

STORM Handguard u2013 Single Point Bar End Mount -hollownn--To fit hollow handlebarn--Designed for weather protection only.To fit hollow handlebar.
Mounted to a single point on the handlebar end using a unique internal locking system.
Incorporates an aluminium frame and locking cap to provide secure attachment.
Easy installation.
Hardware Kit only (NO plastic guards).
Compatible with JET, VPS, STORM or CARBON guards (each sold separately).