Limiting Function: This function restricts the opening angle and range of the window, preventing it from being damaged by excessive wind and also preventing children from sticking out of the window and causing danger.

Structural Design: A sliding linkage structure provides stable support when the window is open, and it can be completely folded away when closed without affecting the window's appearance.

White Coating: The white paint on the surface matches the white window frame, enhancing the overall aesthetics, while also providing rust and corrosion resistance and extending its service life.

Safety Protection
Precisely controls the window opening angle, effectively preventing children from climbing or falling out, and also preventing strong winds from blowing the window sash too wide and damaging the hinges or glass.

Wind and Noise Reduction
In windy weather, it firmly secures the window sash, preventing repeated opening and closing of the window from impacting the frame, thus reducing noise and component wear.

Durable and Rust-Proof
The white coating on the surface (such as paint or electrophoretic treatment) isolates air and moisture, preventing metal from rusting, extending service life, and matching the appearance of most white PVC/aluminum alloy window frames.

Flexible Adaptability
The sliding design of the linkage supports different window opening angles, meeting ventilation needs without over-opening and affecting indoor safety.

Easy Installation
Usually only a few screws are needed to fix it to the window frame and sash; no complicated tools are required, and DIY installation can be completed.