
I wasn't sure but wanted to try them to keep my phone in the cupboard while cooking. To test this I grabbed a plastic bag that contained a 20 inch chainsaw blade (much heavier than my phone). The fixation pad kept the bag in the closet all night (12 hours) without slipping, moving or sinking. I am impressed. I plan on using them to wall mount all my electronics so charging is less messy. Edit to add: Loses some stickiness after repeated use and washing doesn't bring it back to new condition. also has trouble sticking to wall textures (which aren't as smooth as glass or metal). Still a good buy.

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