Saint Benedict Medal

catholics what is the meaning of medal of saint benedict?

if someone wears what does mean? I have the medal but it's for the keys and I want to find a crucifix or medal but I don't know where can I find for free because in my town I cannot find in MX.. I would like to know the meaning and the benefits for using?

According to Wikipedia: "To destroy witchcraft and all other diabolical & haunting influences. To impart protection to persons tempted, deluded or tormented by evil spirits. To obtain the conversion of sinners into the Catholic Church, especially when they are in danger of death. To serve as an armor in temptations against holy purity. To destroy the effects of poison. To secure a timely and healthy birth for children. To afford protection against storms and lightning. To serve as an efficacious remedy for bodily afflictions and a means of protection against contagious diseases."