2. When you release the button, the ball will pop-up , quick release pin will can't be pull-out;
3. High precision, The tolerance of diameter and grip length are very strict;
4. The coverage of application is wide, according to the environment you can choose to use high-strength alloy steel and stainless steel material;
5. According to the space conditions of handle you can choose L-handle, T-handle, Button handle, Marine handle or Ring-handle and so on.
