1. Sturdy Material: The Security Lock Box is made of ABS plastic. while resistant to drops and knocks, providing you with lasting protection. The inside of the lock box has a high density EVA black lining that is soft and flexible to protect any valuables placed inside. Adopts professionalgrade waterproof design, no gaps, no dripping, effectively protecting the box from water 2.High Level of Security: This Security LockBox with Code is made of zinc alloy and consists of 4digit password combination up to 10,000 combination of passwords. It is easy to remember and reset and not easy to crack. At the same time, the key box is equipped with 21.26 inch cable locks, which is made of A3 steel and wrapped with ABS protective plastic. It greatly strengthens the firmness of the key box to improve the security 3.Compact and with : The exterior size of our portable security case is 9.25 x 5.51 x 2.36 inches, compact and portable can be easily put into your backpack or suitcase. The internal size is 7.7 x 3.9 x 1.77 inches when closed, you can ly store your cell phone, passport, keys, power supply, cash, credit cards, watches, jewelry and more. It is the assistant when you are traveling or business trip 4.Wide Application: portable box is ideal for travel, home, campus, office, beach,indoor or outdoor, hotel room, cars, trucks, dormitories, campers or trips to the beach. You can hang the mini security box on doorknobs, pool, beaches, railings, tables or any other fixed objects without worrying about theft