Most of these are usable. A few of them are well matched and strong. Many aren't well matched...doesn't matter for some applications. Most have labels that show tested values for each side but the labels fell off of about 3 of them. I'm packing for a move and don't have time to detail every little thing. Will be tightly packed and well cushioned as you see them in one big bag. No time to wrap each individually in bubble wrap. Less than /tube. Buy 'em and have fun.