“This came with a bike. It’s not on the instructions or parts list. It has a diameter of about 2 inches.”
Answer: “It’s a spoke wrench for adjusting the tension of your wheel spokes. The numbers correspond to the spoke sizes.”
I think it might be the 95th time I have seen that picture on this site, and yes, old toothbrush :)
Yeah, how could a sponge be used for RFID?
Yeah, Izi, we've been over this before.