FCS Longboard Box Adapter fiberglass protector Collapse-resistant Dura-Mesh shell lasts longer

Collapse-resistant Dura-Mesh shell lasts longer so workers use fewer masks

Vacuum Hole Design:  Non-Vacuum

also provides excellent results on gel coat and some paint finishes

which should not be used in with any older pumps with a white head (301 and 303 pumps)

is an ultra-light

FCS Longboard Box Adapter fiberglass protector Collapse-resistant Dura-Mesh shell lasts longerThis FCS Box Adapter allows you to change from a traditional longboard fin to a FCS Thruster setup in seconds,perfect for loosening up your longboard. The FCS Adapter fits most standard longboard box. The adapter is adjustable for deeper longboard boxes Change your traditional longboard fin to FCS thruster set up in seconds.