Neato Botvac Slide Bumper Switch 65 70e 75 D75 80 D80 85 D85 bump sensor Replacement Bumper Switch for Neato Botvacs A Few Example Compatible Models: Botvac 65 70e 75 D75 80 D80 85 D85 Sold by caSino187 Compatible with many more models than what is listed here.