In addition to "Big Boggle", now we have the regular 4x4 size available! We also have a new method for making the die's rounded corners--it's a small difference, but one I'm proud of. :o) Also notice the splines that (as well as looking stylish), reinforce the corners of the top. This is something I've been adding to our big boggle sets for a while as well, but haven't gotten around to taking new pics.
https://thatfamilyshop.com/products/wood-boggle-family-word-game