My 2016 Shamrock 19 had them too. I ordered more for the sides of the upper cabinets and also below the TV. I will say, I noticed little black "shavings" on my dinette last time we camped. They were tiny and I kept vacuuming them up. I found out this week that is is they factory net above the front bunk! It is falling apart. I only keep the couch pillows up there. Anyone else having this issue?