I dug my amaryllis bulbs a couple weeks ago. Took a pic of the 2 biggest ones. I guess I was able to get them to grow a little bigger............LOL............they were bigger bulbs when I purchased them a year ago, but they really grew planted in the ground. I think that is an 8 inch pot, for comparison.
large bulbs
Your bulbs look rather "dried" and not in the very best condition. If you perceive some black discoloration on and into the neck, respectively, then treat your bulbs with a miticide (acaricide).
I will check them tomorrow.
At first I thought that was a toilet paper roll in the middle! LOL!
Somebody on another group thought that too. :>)