The light was not good to take individual pictures of the kittens today (and for many days actually), but yesterday Jocke took a few pictures of the kittens (and Albert is in the background on two of them).
The kittens are almost done with potty training. The success rate of hitting the box with paper or wooden pellets is about 80-90%. They are still pretty small and quite clean, but sometimes they make mistakes.
Their mom hated the sand and we had to remove it and replace it with pellets. The edges were sharp for the little paws, I think, but that was the best non-clumping sand we found.
It is important not to put clumping sand or pellets in kitten’s sand box. When they are small they may ingest it (they try to eat whatever) and if the particles they ingested are clumping, they can get serious health problems and even die. Be careful! (This is important only for very small kittens, no kitten older than 8-10 weeks will try to eat sand. They do not move from they mom anyway until they are 12-14 weeks old,).