I like the Gale Force 9 ones.
Wonder if they come in groups of 20 as opposed to 25?
Still, very useful. I use these trays to put my minis in and then into one of those Ikea dietolf glass cases in my home office room (wife won't let me put them in the family room or bedroom - go figure).
It's easier to have many figures on one base than to have pack and unpack them individually.