Inserts 4 deg. (one pair)
ProBox has a patented insert mechanism that allows the cant angle to be adjusted by swapping out the insert!
Currently there are 4 different insert angles available, each of the angled inserts are a different color so that they can be easily identified. Current angles: BLUE - 0°, RED - 4°, BLACK - 6°, and WHITE - 8°. Inserts are also sold separately in pairs.