Thank you for viewing. This is an HRD Dipole Mini. I used to use it, but I stopped using it when I moved, and it has been stored at home for about 15 years. I have two of them, and I used this one as the main one, so there are scratches and paint剥がれ on the adhesive surface, but the magnetism is not a problem. Easy to install, maintenance-free, and activates water. Size: Approximately 7cm wide, 12cm deep, and 7cm high Weight: 670g Thank you.