N35 16mm od x 7mm id x 2mm Thick Neodymium Ring Magnets Rare Earth Strong Ring Magnets

Features:
This strong magnet  is made of NdFeB, appearance does not rust, usually placed in  room temperature,

the maximum  operating temperature is 80 °C, and it never will demagnetization.

1. Strong magnets should keep away from Ironware and some  easily magnetized iron products, such
as monitors, bank cards, computers, televisions, mobile phones and other.

2. Strong magnets should be stored in a dry, heated environment, and need to use of plastic, wood,
cardboard, foam to separated and wrapped.

3. Magnets might be interested in water meter ,electric meter, gas meter and some metering equipment
exist some inaccurate affect (such as: if magnets placed near  the meter, the meter will slow down).