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With this tool you can open doors by hooking the door handle in a hygienic way without touching the door directly. contrary to other designs you can use 2 fingers and rest your thumb on the upper curved recess for more convenient handling. With the front end you can type / press buttons on atm cash keyboards.
With the rear hole you can attach it to a rectractable key holder and carry it outside your pockets to have easy access and avoid contaminating the inside od your pockets.