Blunt Nose Single Fin 9'4" Thunderbolt the 4-A is a fin

the 4-A is a fin that will hold when you need it to and release when the time is right

This model is designed for all types of surf and is a great travel companion

Originally tested on the Oscillator and Phoenix

A professional repair to the fin box

A few light under-glass cosmetic cracks on the tail and rail that are watertight

Blunt Nose Single Fin 9'4" Thunderbolt the 4-A is a finCondition: Great condition, moderate deck pressures and some smaller scattered ones on the bottom. Some mild moderate cosmetic scuffs scratches to the polished finish. The black colorway shows up any small imperfection. Additional Info: This is a used board, and were excited for you to check it out! We do our best to describe the boards condition, including any repairs, features, and signs of use. Please review the product photos and description on