- aluminum alloy
- Window stopper lock-- made of aluminum alloy, the main material is strong and durable, anti-scratch, anti-wear workmanship, easy to open the surface
- Door lock stopper-- effectively increase friction, no scratch, low noise
- Sliding window lock window safety locks window lock anti window lock window stopper lock window frame window stopper latch window lock proof windows frame locking tool-- put it on the window or door bar, open and close by the part that needs the window
- Window lock-- heavy-duty construction ensures durable and rustproof, reusable and reliable
- Window stopper-- it can be used in home, office, and any places you can think of