You need more than a flimsy chain or bolt for your hotel room. One solution: the DoorJammer, a metal door buttress that fits in the palm of your hand. Hinges and angles anchor it to the floor and against the door, exerting bracing force against pressure from the outside. The Jammer is 5 inches tall, 3 inches wide and weighs about half a pound. It’s not proof against every tough force, but it can be a great little security device for some portable peace of mind.

Source: Los Angeles Times March 04, 2019 12:56 UTC