Ram Mount Ball with threads expedition speakers The nut zerts are 1/4-20

The nut zerts are 1/4-20 or M6 thread select option above

EVP pre-filter and smooth silicone elbow tubes with gradual diameter taper all result in greater airflow efficiency

Wrap Around Arm Guards (go to product page)

allowing you to customize your audio setup to fit your specific needs

while the outer housing is built from die-cast aluminum and topped with a tough polycarbonate lens

Ram Mount Ball with threads expedition speakers The nut zerts are 1/4-20Ram Mount Strong Rubber Ball 1 4 20 threads . 25 long SKU 300169 This Ram Mount ball is made of a rubber ball that is connected to 1 4 20 thread that is 1 4" long. The threads match a lot of electronics including camera and camcordors.