1. Two adjustable gears, stretch more freely, length changes, rotary operation, safe and convenient
2. Large non-marking adhesive, safe and odorless, strong adhesion, the baby pulling does not fall off
3. Perforation/paste dual-use, easy and fast installation
4. Do not pick the window type, all kinds of windows can be locked, inward/outward/downward windows universal
5. Double unlocking safer
6. Anti-corrosion and anti-rust, durable
7. Size: first gear about 13cm, second gear about 16cm
8. Weight: about 71g

Installation steps:
1. Wipe the installation position clean
2. Open the window, align the window frame edge paste
3. Move the window to adjust the position
4. Paste the window in the right position