What are the two Teflon strips for? August 02, 2021 07:17 Updated The strips are to give you a smooth scanning experience, and to protect your wall surface . Related articles Why isn’t there a gel pad? Why isn’t a plug supplied with my charging cable? Are any other parts included with the Walabot DIY 2? How is the Walabot DIY 2 powered? How do I update the software?