Corner & end tensioner combo for t-posts, for 1-1/2" polytape, fits 1.25 & 1.33 t-posts recommended for use with electric fencing, fully insulated, all metal parts are of #300 series stainless steel, insulators are molded of white high density polyethylene with uv inhibitors, each assembly includes an electrical connector consisting of 1 self tapping lag screw & wire terminal, use to connect energizer or jumper as well.