Neodymium Magnet self adhesive 3M 30 x 10 x 2 mm - 2.6kg
https://simplehw.eu/shop/kv-30-10-02-3m-neodymium-magnet-self-adhesive-3m-30-x-10-x-2-mm-2-6kg-409
https://simplehw.eu/web/image/product.template/409/image_1920?unique=881d3ca
Standard magnet supplied with magnetic switch SimplePacks
