QuikStem Stock Trailer Fix Real Time - Didn't need the jack at all

Old stock trailer, good tires, but dry rotted valve stem. One minute QuikStem Quik Fix with QS-430 which is QuikStem's .453" long stem.
I don't know how many valve stems you've changed, but I bet you didn't do it in under a minute with a cell phone in one hand :))
Jacked up to spin to look for nails, but no jack necessary to install a QuikStem