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Mega Block has a removable covering to protect
the magnet. This unipole ceramic block magnet is
4" x 6" x 1" thick. Great for use under
pillow, powerful 3950 gauss mfg.'s rating 8 grade,
but not flexible. These are good magnets for deep
penetration. They have a covering to protect
the magnet. Each magnet is clearly labeled for the
negative side. Ceramic magnets have a far-reaching field penetration. Because the magnet
is made of ceramic compound, if dropped it can break. Cloth
cover with Velcro. Magnet can be removed from cover. Made in USA.
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