Park ToolVC-1 - Valve Core Tool Tool,Blue, standard size

Alive ridden bikes for 20 or so years now and never thought I'd need such a tool until one day I had a puncture and swapped it out for a new tube. Which I fitted in fast time and inflated and off I went, only to find after about an hour was deflating.That day I learnt 2 things, firstly always check that your inner tube cores are nicely done up to avoid the embarrassment that I had. Secondly this tool is so easy to use to tighten inner tube cores. We have al it of bikes at home and yeah you could use other tools too do the job but this was relatively cheap and dedicated to the job and so easy to use.Build quality as ever from park tools is amazing & this is so light it's easy to carry on rides

The took I never knew I needed!!! Simple, but brilliant and effective…usual Park Tool quality and associated smugness you get from buying the best for a quid extra.

Great replacement for my plastic took that broke. Not the cheapest, but should last.

good quality tool - a bit too expensive in my view. Much needed if you use continental inner tubes where the valves always seem to undo with my pump. Does what is supposed to do

Arrived quickly and very easy to use much better than the one I have got so decide to keep it

If as I have, you have Presta valves with removable cores, this small lightweight tool is indispensable for both removing the cores so as to inject a tyre sealant into the tube or tightening the core up so it doesn't leak or fall out. The alternative is to use needle-nose pliers which, unless you are very careful, can risk destroying the thread of both the valve and the core. In addition, this tool will work with Schraeder valves as well, allowing you to repair them. It's small, lightweight and great value for money.

Neat and easy to carry, this does exactly what it's supposed to do.

Nice machined quality tool, Pricey considering but does the job reliably.