Master Magnetics CA403CNX20 Magnet Fastener, Rectangular with Center Hole Nickel Plated, 1" Length, 0.875" Width, 0.250" Height, 7 Pounds, Silver (Pack of 20)
</br></br>

</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/51F9169VI5L.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41vSfLZ9%2BwL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41QJVdyL%2BBL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41lJAG-EwOL.jpg'></br>