This lanyard feature is a safety breakaway at the back of the neck and snap buttons on the end to secure your mask in place.These lanyards are made of durable polyester material,it can be customized,1color 1 side logo printing by silkscreen imprint.More or full color imprinting by dry sublimation imprint,it can print on one side or both sides. Great item for schools,ourdoor events.Contact us now!