telescopic window support security wind brace stainless steel angle controller

material: made of 201 stainless steel material, not rust and durable, high strength and practical. function: can fix the angle at which the window opens. suitable window: the telescopic support is used for plastic steel window. anti-skid: convex point anti-skid groove, good wind-proof ability, not easy broken but easy to install. telescopic: telescopic rod can be adjusted to the desire length easily. stretch