Mustang Survival Replacement Bobbin Casual Vestibule Area: 24

Vestibule Area: 24

The refined features you've come to expect from all Osprey backpacks

* More than 100 new routes

no-draft wedge

manual or automatic

Mustang Survival Replacement Bobbin Casual Vestibule Area: 24Pack of 12 sold seperately Bobbins are a replacement part for all Halkey Roberts type automatic inflators. They dissolve when immersed in water and cause the CO2 cylinder to inflate the PFD. All Mustangs automatic inflatable PFDs come with cylinders and bobbins. Annual maintenance and inspection of your PFD is recommend. For recreational use bobbins should be replaced every three years to avoid inadvertent inflation.