Simple snap-around adapter allows Yakima bike, boat and cargo accessories to be attached to Whispbar rack systems 32H fits onto Whispbar Flush, Through and RailBar options. 34H fits onto Whispbar HD Allows the attachment of the following Yakima accessory mounts HighRoller, Raptor, Mako Saddle, LandShark, KayakStacker, HullyRoller, HullRaiser, BasketCase and WheelFork Sold as a set of 4 and uses the hardware provided with the accessory mount Quick and easy installation and removal; no tools required Consult Whisbar Compatibility Guide or online Yakima Fit My Car for vehicle specifics 32H fits onto Whispbar Flush, Through and RailBar options. 34H fits onto Whispbar HD Allows the attachment of the following Yakima accessory mounts HighRoller, Raptor, Mako Saddle, Lan Sold as a set of 4 and uses the hardware provided with the accessory mount Quick and easy installation and removal; no tools required Consult Whisbar Compatibility Guide or online Yakima Fit My Car for vehicle specifics