I'm wonderng if the Amika curler that comes with the trio set is 25mm or the smaller size?

I would like to buy the 25mm curler, and see that there's a set which includes the straightening iron and the blowdryer also, but I only want the curler which is 25mm in size and not the smaller one. Can you tell me what size the curler is which is included in the set, and if its the 19mm one, if it can be changed for the 25mm one. Thank you.