The handy Twixit clips are used to hermetically close pastry bags. The small clips are ideal for closing the bottom of the pastry bag (nozzle end), therefore making them easier to fill. The big clips are used to close the top of the pastry bag after filling it in order to store the preparation in a cool place. Very easy to use, just put the pastry bag between the two sides of the clips and close them. They are also essential for closing any kind of bag. Set of 8.