Stan's NoTubes Tire Sealant Injector Syringe
Sure, you could inject tire sealant without this handy gizmo, but why would you want to? It makes application quick and hassle-free. Forget about mess and waste. Just connect to your valve stem, fill the syringe with sealant, and take the plunge to tubeless. You can even use it to remove sealant from one tire and inject it into another. It pretty much pays for itself the first time you recycle sealant from an old tire to a new one.