The TSI-1 enables you to inject the perfect amount of sealant directly into mounted tubeless tires through the valve stem without removing the bead from the rimThe long, thin tube is able to fit all the way through many Presta stems with removable valve cores, for tidy injection and removal of all injectable tubeless bicycle tire sealantsFeatures an oversized syringe body with easy-to-read gauge for precise application of sealantSyringe capacity: 3.5 fl. oz. (100 cc)Injector OnlyUPC/EAN/GTIN: 763477008275