Convert your collector pins to magnets with these adapters. Break apart the six adapters. Then, snap a 3/4 inch diameter magnet from your local home improvement store into the clip. For a single post pin, push your pin into the small hole. For a dual post pin, pick one of the winged adapters and push the pin posts into the wings. Clip off any excess wing length that sticks out too far. Now you can stick a collector pin on the fridge or your magnet board.