Stanley 43-511 Magnetic Shock Resistant Torpedo Level N/A Imported Heavy-duty aluminum frame ensures accuracy and durability Open, top-read vial provides maximum readability High Quality New!!!!!!! Non-marring feet can be used on finished surfaces without damage Water resistant for use in wet or humid conditions Heavy-duty aluminum frame ensures accuracy and durability Open, top-read vial provides maximum readability Bi-material body with rubber ends for shock absorption Non-marring feet can be used on finished surfaces without damage. Pipe groove makes it a good choice for use on rounded surfaces Limited Lifetime Warranty Heavy-duty aluminum frame for accuracy and durability Open, top-read vial for readability Non-marring rubber end caps absorb shock and hold up to heavy duty use Pipe groove makes for use on rounded surfaces Magnetic base allows hands-free operation on metal surfaces