No that’s just the reflection. It’s a straight ruler.

Not real sure what you mean, but I posted in another comment here an updated photo as of this morning.

I found a 14 page shredder on FB Marketplace for $40 about a year ago. I usually just throw a couple of 35+ gallon garbage cans of shred in my compost, but this time I wanted to experiment.

In approximately 12 hours that little flush grew half an inch. Better ruler this time 😄

You can see in this photo that I just sprayed all of the holes with water like I do once or twice a day.