All disks work perfectly.

They are packed and ready to be shipped, 20 per package.

I'm grateful if you order multiples of 20 disks. The shipping cost is the same if you buy 1 or 100 disks, so the more you buy, the more you save!

See them in action here: https://photos.app.goo.gl/N7WUXSNVnWMJ8Cs98.