I love these; I needed something a little bigger when the 2 in expansion did not have enough room--these made all the different and the right size needed to complete the job.
The 3 inch expandable is great if you have enough information to demand it. I also use the 1 inch expandable until it will not fit. Then I graduate to the 3 inch. At first it is very flimsy and does not function well. I would like to have a 2 inch expandable. Other options are also available with extra divisions so it can continue to grow with my needs.