Cass I don't think they make them in a box as I can't find them either. The 48 pack is the biggest I've seen. I bought some of the Crawler in a box when they were on special a couple of weeks ago, but they are still a bit too big for S I think (6-11 kg). Thought I would just take advantage of the special while I could since I'm sure we'll use them!

Caro I emailed you