AutoEC Tire Deflator, Adjustable Brass Tyre Deflator Kit for Off Road Tires, Car, Truck, Jeep and ATV (4 Pack) Accurate and Convenient --- The tire deflators easily lock in your desired PSI setting so you can accurately deflate your tires again and again without having to reset the psi each time, which make the chore of airing down much more comfortable and convenient. Heavy Duty --- Made of 100% solid brass, rust-free spring and air-tight rubber washers, AutoEC Tire Deflator is durable, rustproof, corrosion-resistant and gas-tight. Easy to Use --- Tire deflators easily screw on your tire valve stem and deflate your tires to the psi you want, then tighten it back up until you hear no more air, finally tighten the lock ring. Universal Fit --- Fits for deflating tires of Off Road Tires, Car, Truck, Jeep and ATV and other standard vehicle tire valve. Bonus Metal Box --- With a sturdy and portable metal box, you can keep your deflator kit together and organized, dont worry about losing it.