BS Blocking System

 
The BS blocking system, made of temperature resistant materials, ensure reliable performance in extreme conditions. The BS expander makes sure that the telescopic sections hold firm at the adjusted length.
This one-piece expander is securely fastened to the poles so it can't get lost when sections get pulled apart. The BS system is used on several models and has proven its superior dependability in rugged mountain use.
(自锁系统：自琐系统由具有抵抗温度变化的材料制成，可以确保极限条件下仍然具有可靠的性能。BS系统的膨胀拴可以确保调整过长度的杖杆的稳固。膨胀栓部分很牢固的固定在杖杆上，拉出杖杆也不会丢失。经过各种测试的BS系统可以保证在崎岖不平的山路上使用。）

Adjustable strap

 
The major

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