Fat indicator

My hand cannot fit into a shuttlecock carton any more.

I think a few years ago, I could always use my hand to push out shuttlecocks from the carton. Provided that my hand was clean and dry (not wet or sweaty). Then sometimes I couldn't, but I think I kidded myself that shuttlecock cartons were not all the same size.

But it's been quite some time since I couldn't poke my hand into any carton at all, so I think it basically boils down to getting fat. :P