Optional tension spring that can be used to add tension to poliwire if required. In a normal "kit" type fence hand pulling the fence poliwire tight the is more than adequate. In more permanent fences where braided wire is used the spring becomes a necessity.

Optional tension spring that can be used to add tension to poliwire if required. In a normal "kit" type fence hand pulling the fence poliwire tight the is more than adequate. In more permanent fences where braided wire is used the spring becomes a necessity.