1.10.2 How to set shield block on 100%

1.10.2 How to set shield block on 100%. Is there any way to do it ? If its possbile could anyone do it ?

Shield block? Do you mean barriers, the actual shield item, or the world border barrier you can set in game?

i think @Lajtmen_PL means shield blocking removing all damage.

Yeah it is what i mean