Bought these to place outside to hold elevator and gate controls. Peel side I'm assuming you're either gluing the peel to the box or the wall, not sure which as nothing tells you which side to glue the gum to (wall or box). One taped to the wall and 1 hour after assembly we had a canyon wash. ALL my remotes got wet. Don't buy this if you plan to put it outside, it doesn't have a back! And they charge a 50% restocking fee, so getting them back is expensive. Cheaply made, poorly described, expensive returns and almost a month to receive it. DO NOT BUY!