DELFINO Aluminum Alloy Window Restrictor Locks Child Safety Window Locks Window Sash Restrictor Key 

• No additional tools are required and no need drilling. Open the windows to the proper position or close the windows as your need.
• Sliding Door or Window frames must have a gap between 2.5 – 4 cm.
• Our adjustment window locks are made of aluminum alloy, durable and thick. And it has non-slip silicone pads to increase the strength.
• Can fix the window in place and cannot be pulled or opened, effectively prevent your child from opening the windows by his own, anti-theft and keeping the fresh indoor air.
• Used in Homes, Residential Accommodation, Hospitals, Schools, Universities and Offices, Give Your Children a Safe Environment.