Introduction 
This item is specially designed not to be opened except by the designated key because of its small hole.
The entrance is designed so that other materials such as pins cannot be inserted into it because small gears work together with large gears.
Backside is completely blocked and does not enable other materials such as pins to be inserted into it.
Silicon-Coating for preventing self-injury and wrinkle-hurted(newly developed in the world market)

Features 
Aluminum Silicone Coating, human rights protection, Preventing an injury to the wrist, Preventing self-injury

Spec 
Materials: Aluminum 6061 & Nickel Plated silicon coating
Weight: 175g
 

* Please refer to the Catalogue