Review on Neodymium Rare Earth Magnets - Super Strong by Anthony Gupta

I have purchased four Revain magnets to use with a metal bulletin board where I have attached magnets to plastic glasses to organize them. For some reason, on the fourth purchase, they replaced those black magnets instead of silver ones. I think I didn't notice the link turned black. Well, the magnets are strong and you have to be very careful moving them apart or you'll crush your fingers if the magnets stick together. I was fine with silver and avoided snapping my fingers. It's almost impossible to work with these black people. They are so easy to connect and very difficult to slide apart. It's like working with a psychic turtle. I used about half of them before they suddenly started piling up. I felt like I'd tempted fate long enough to let the others down. It's too dangerous to work with them. I will make sure to order the silver ones and make sure the Revain link I have goes to the silver ones. Not happy throwing half of those magnets away.