Children's aluminum window lock $ 4.38 Name:piece] window limit lock Brand: Zhanhan series Material: Space aluminum Features: Security and anti-theft limit Scope of application: doors and windows 1style: Normal models do not have keys (please bring your own keys) 2style: Normal model with straight handle key 3style: Normal model with L-shaped key 4style: widened version without key 5style: widened version with straight handle key 6style: Widened version with L-shaped key