4 Neodymium Magnets 1.5 x 1/4 x 1/4 inch Ring N48 Start Price USD 29.99 Current Price USD 29.99 Time Left 13 days 11 hours 18 minutes Bid Count 0 Buy It Now Price - Reserve Price - Start Time Thursday, September 25, 2008 End Time Friday, January 23, 2009 Location Petersburg, West Virginia See more about '4 Neodymium Magnets 1.5 x 1/4 x 1/4 inch Ring N48' Description 4 Neodymium Magnets 1.5" OD x 1/4" ID x 1/4" Thick Ring N48 Rare Earth You are buying ONE lot of 4 Magnets. Size: 1.5" Outer Diameter x 1/4" Inner Diameter x 1/4" Thick Ring     (38.1 mm x 6.4 mm x 6.4 mm)Nickel (Ni) Plated (silver-like shine)Grade: N48 - Extremely powerful magnetic materialPull Force is approximately 30.58 pounds per piece under ideal conditions. These rings are axially magnetized, so the strong North/South poles are on the flat sides.That makes them easier to stack into a cylinder than to connect side by side. ***WARNING*** These are Very Powerful Magnets! Magnets of this size and strength can pull metals objects to them when brought too close. Two magnets of this size will fly together with great force and can easily pinch fingers and skin. DO NOT allow children to play with these magnets. They are simply too strong. Also, even though these magnets are coated with tough nickel metal, all neodymium magnets can chip and break. The larger the magnet, the easier this can happen. When placing a magnet on metal, try to ease it onto the surface. If it "flys" onto it, it can shatter. Trust me, I know from experience. Please exercise caution and planning when using these magnets and they can serve you for a lifetime (and without bruises) :-) These Neodymium Iron Boron magnets are also known as "Rare Earth" or NdFeB magnets. Neodymium magnets are simply incredible! They are far more powerful than those old horseshoe magnets most of us grew up with. US buyers pay $8.25 for the first set and $3.25 for each additional identical set for S&H. Satisfaction Guaranteed Place a Bid!