Aspide this is kinda late, but as boltejector stated it's best to stay away from string silencers as they will pull down your FPS. If this is ok with you then you install that type in your string by parting the strands and pulling thru half of the puff silencer.
To do that with out damage too your string you would have to relax your bow string with a bow press and then insert your silencers between the string strands..Be-aware they do not help much and will not last very long.. :wink: