HEY, GUYS!

Hey, guys! Can anyone tell me what the heck this doodad is for? There's a new oven in my new home and when I unwrapped the oven racks, this thing was in there as well. It's not shown in the manual which was my initial go-to, followed by brief stops at Google and Youtube with no answers to be found. Makes me think of (answer in comments)...

#WhatThe