[ What You Get ] -- Including portable door locks , providing additional safety and privacy for you and your families friends at travel hotel, home security. [ Sturdy & Compact ] -- 3.5 x 1.7 Inch Small size yet firmly hold the door. Our portable door lock is made of solid stainless steel, sturdy and durable to provide extra security from inside. Lightweight small guitar shape pocket locker with elasticcord for convenient use and easy to carry. [ Upgrade to Fit Most Inward Door ] -- No limits for bolts size of door, these portable door locker can be applied on Inward opening doors that have 0.06 Inch door seam thickness (one coin thickness), And door sides must be flat without protrusion. [ Easy to Use ] -- Simple to install & remove inside room in a seconds without tools, the door would not easy being opened even if someone else outside has the key. [ Widely Application ] -- Add a portable door lock to provide effective safety and protection, It is a novel and unique travel door lock, suitable for families, hotels, schools, travelers, college students, singles, mothers at home, etc.