The Stans No Tubes The Injector is 2 oz syringe that makes the application of sealant a more simple job with no mess or waste. Stan's No Tubes The Injector also allows transfer of sealant to new tyre. Allows you to measure the amount injected into each tyre keeping the quantities at prime performance levels. The dual threaded plastic adaptor fits both Presta and Schrader making this a versatile product. The injector now has a rubber seal which makes for a smoother operation and ease of use.