They stick well to plastic under the dashboard and to galvanized metal on my trailer. Good adhesive. I place this in my car so it becomes a cheapman's lowjack system for when my car gets stolen. It works 100% better then the * tile for android.
These are so cute and perfect to put on my pet collars and leashes. Lower-tone is soooo much gentler on the human ears. My granddaughter loves to change out the colors on our cats collar.