Fiabilit de la rfrence humaine dans la dtection de thme

A magnetic lock closure device has a magnetically attracting part and a magnetically attracted part, the magnetically attracting part having an enlarged portion extending outwardly for allowing the magnetically attracted part to engage the magnetically attracting part through the center bore on it by means of the ferromagnetic rods on the two parts, without making any attempt to search for the center bore. Each of the magnetically attracting part and magnetically attracted part includes a fastener for fastening it to the corresponding part of a two-part article such as a bag without increasing the thickness of that part.