Magnetic buckle ring

Nowadays, many families live in the community and need to use magnetic buckles to get in and out of the community. Many people should have the same bad habits as me. They will forget to take the keys out and think that there is a mobile phone, so they are often locked outside the house. So I thought that the magnetic buckle can be made into a ring style, which is not only convenient to carry but also can be used as an ornament to prevent forgetfulness.