Portable The self-defense door lock is a portable door lock that installs in seconds without any tools required. Scope of application Use it at home or take it with you when you travel, apartment living, hotel students, school lock down. Easy installation The self-defense door lock is a portable door lock that can be easily installed and removed in seconds on any door that open inwards, giving you additional safety, security and privacy behind it. Specification Type: Self-Defense Door Lock Quantity: 1 PC Material: PP + stainless iron Color: Red , Black Size: 13.0*4.2*1.0cm/5.1*1.7*0.4” (L*W*H) Net Weight: 130.0g/4.6oz Requirements for use 1. The doors that open inward 2. The width of the door gap is greater than 3mm Product Show Portable Hotel Door Lock Locks Self-Defense Door Stop Travel Travel Accommodation Door Stopper Door Lock