The Kool Stop bead jack is distributed here in the USA by Kool Stop. But mine says its from the Netherlands. Wonderful tool. Even using a Continental Grand Prix 4000-S mounting on a carbon wheel, it works.

Some You tube demonstrations will avoid the "hard to fit" scenarios for this bead jack. If I had to make improvements on this, it would be on the "lever arm" part. The end what I call the "blade", is just a tad bit too thick and sometimes I get some slippage when applying force. To avoid this, I have to systematically inch my way to fully mount those last few inches. In other words, its not in one fell swoop.