This pack contains 2 x straw spouts for your Subo. Whether you need to replace or just have them spare, this is great value. The Subo Straw Spout is great for kids under the age of 2. It is made from food grade silicone. It is a soft mouthpiece that has a 5mm diameter opening that allows for thinner type foods like purees, plain yoghurts and rice cereals.It is interchangeable with the original spout that comes with the Subo Food Bottle. Please note - this is for the silicone spout piece only. Please keep the existing collar from your bottle.