The OakTen tire chain tensioner is designed and made to exceed OEM specification to return your equipment to peak performance levels after normal use. While installing it, remember to do so in a well ventilated space, while taking proper safety precautions like eye protection and chemical-resistant gloves as appropriate. We offer you one year warranty and hassel-free return or refund for all the productss sold. Let OakTen Parts keep your equipment in excellent traction today.