Park Tool Valve Core Remover

Works as expected

Works like a charm.

Pricy but if you are going to go tubeless you definately want this.

A+

Great tool to add to my bike bag. Works as expected.

Seems to be well made and works as expected.

Works well as it should.

The tool works well enough its small and compact. Seems like a quality tool made from a machined piece of metal.

what is the big side for

This is a must have for your tool pack on your bike. I run tubeless tires so I need to remove my stems to add sealer.