PETOL SURGRIP VALVE WHEEL WRENCHES significantly reduce the chance of injury due to wrench slippage when opening and closing valves. These durable, ductile iron wrenches are safer and easier to use because the head design provides a better grip and allows the operator to rest the wrench on top of the wheel when opening stubborn valves. This, along with longer handle lengths for more leverage, make the PETOL SURGRIP the best valve wheel wrench on the market. WARNING! Protect yourself and others from SERIOUS INJURY! Use as a hand tool only for gripping ??? NOT FOR STRIKING! Never use a cheater or other means to extend handle! Always pull toward base pad! If wrench slips you can be hurt or injure others.