Magnetic hydrometer holder

This is a magnetic holder for your (round) hydrometer. You can place it anywhere that you need and can move it around. I used 5*2,6mm magnets, and they fit perfectly without any glue (I would recommend using pliers to put them in the holes). I use it for my dry box because i didn't want to drill a hole or glue it (both versions would mean that you couldn't move it afterwards). Enyoy.