LYECUNLYECUN Watch Case Open Ball, Rubber Ball to Open and Close Case Backs, Watch Back Remover Tool

I have seen balls like this being used on social media and thought - "Yeah, right." But I got into watch repair and thought I can't condemn something without trying it. HOLY smokes! This thing works like a charm! I popped the back off three watches in seconds with NO damage to the watch. What's not to like about this ball? I imagine, sooner or later, I might get a watch back that seems to be welded on. I have the tri-jaw tool for that one, but all the rest will be damage-free.All I can say is that this one works fine! It even came with an "air needle" to inflate the ball. And the price doesn't hurt either.

If you don't inflate the ball to capacity, it works most of the time. If you put too much air in, you will have trouble. Even helps get the back back on.

Lo recomendaría aunque debes tener en casa una bomba manual de bicicletas por ejemplo para poder inflarla.

Wow! Caseback didn't stand a chance against this ball.

I tried and tried to get this to work. It's just wasn't "sticky" enough to do anything. I couldn't open watch backs or even get them to screw back on. I tried more and less air in the ball. Honestly using my fingers was much more effective than the ball. I ended up using one of the 2 prong metal tools sold on Amazon to remove and tighten my watch backs. I think this product is useless, especially for water resistant watches that need the back to be snuggly attached. Save your money.

Worked like a charm just put padding under the face of your watch push done firmly and unscrew the case back. Worked perfectly.

Have not used it successfully yet. Would have help to onclude a tool to aor the thing up. And some instructions would help

I work on vintage watches to sell on eBay, and this works on most of the screw-on type case-backs I run across that aren’t frozen from years of neglect (or degradated caseback rubber seal). Prevents scratches entirely. Good size, not overly bulky. Quality seems as good as the more-expensive Bergeron ones. Recommended!