产品说明：轻量级的摩擦式钢撑适用于平开窗户，它能满足你对安全性及开关方便的需求，并且在你开窗子的时提供足够的摩擦力。

• The super light friction steel-support is suitable for jib door window, it can not only meet your requirement on security and convenience when opening, but also serve you with enough force of friction.