Description: Stainless steel made material, rustproof; Easily install and operate; Used as a security locking device for safe viewing and ventilation; 145mm/ 5.71inch chain length, 105x23x7mm/ 0.39x0.91x0.28inch lock plate; Cannot be unlocked from the outside, locked from inside, providing a safe living condition; Specification: Material: stainless steel chain length:145mm/ 5.71inch; Lock plate(LxWxH): 105x23x7mm/ 0.39x0.91x0.28inch; Fixed lock plate(LxWxH): 63x23x7mm/ 2.48x0.91x0.28inch; Nail length: 25mm/ 0.98inch Package Includes: 1 piece door chain 4 piece screw
