Make bottling your wine a little easier by using this pinch clamp when bottling to stop and start the flow of wine when changing bottles.
Thread the siphon tubing through the pinch clamp and clamp the siphon tight which will virtually stop the flow of wine so you can change bottles quickly and spill nothing or nothing much.
The second picture shows the item "in action" with the siphon threaded through. The top pic shows the clamp open and the bottom one shows the clamp closed.
The clamp is designed to fit turbing about 8mm internal diameter (slightly bigger or smaller will be fine).