This ritual establishes an invisible kinetic shield around the caster of about one foot. This blocks all inanimate projectiles and they visibly deflect from the shield when they hit. It cannot stop physical melee attacks. It will not stop the effects of a magical attack or other Disciplines nor will it block fire, air, sunlight, water, etc.
There is a one minute concentration time while the caster blows on a strip of cowhide. The ritual lasts for one hour.