A MUST HAVE for easy tyre sealant application & tyre sealant recycling! Makes application of tyre sealant quick & easy. Minimizes waste & mess of tyre sealant. means that you can measure the amount injected into each tyre. Can be used to draw tyre sealant out of a tyre & re-inject into a new tyre. Saving from waste of tyre sealant when switching to new tyres