movdqa
Talk Tennis Guru
I just opened a case of USOs and there's a ring at the top instead of a solid cover. I think that the ring prevents the ball from falling out after you remove the metal top but it allows any liquid around to get in and the balls can move up and down the tube. It's definitely a different look and feel. I have several solid covers and I'll just put them on the top of the can when I take a new one out and save the solid cover. Strange way to save a few pennies.