Koehler Enterprises EZ12BK EZ Clamp Blister Pack, 2 Piece (SAE Size 12, No Tools Required) Stainless steel band provides maximum corrosion resistance to salt and most chemicals Size SAE 12, clamping range from 1/2 inch to 1-1/4 inch (14.3 to 31.8 mm) Ideal for installation in tight-fitting or hard to reach places Suitable for a variety of applications for home, auto and industrial uses Versatile and easy to use and maintain