All-metal design:Aluminum alloy, surface electrogalvanizing alloy, not drop paint, Stainless Steel Cable,durable.
Applicable places: family, hotel, large window, hospital, bank, etc.
Easy install:Installation takes less than two minutes
Mechanism is designed to lock without a key, to unlock a key is required
Waterproof- 304 stainless steel cable with clear and smooth PVC coated can well protect the cable from rust and scratch.cable’s length is 7.87 inch( 20cm ) window can be opened 4-5.9 inches (10-15cm).