The fence stay is similar to the double spiral wire. Spiral the fence stay onto barbed wire fence between the fence post to tighten the barbed wire fence. It can improve the stability and durable life of barbed wire fence. Additional, it can prevent horse, cattle and other livestock from climbing or walking out of the pens. It is regarded as money saver, time saver and safe thing in the barbed wire fence system.The fence stay can not only used in the barbed wire fences, it is widely used in the field fence system.