HOME SECURITY &PRIVACY: GT-SD101 is locking device for out-swing entry door, which allows you to open the door few inches for identification.
PATENTED AUXLIARY LOCK: Featuring with patented thumb turn lock, GT-SD101 is precisely locked by turning the positioning knob. The auxliary & secondary lock is effectively to prevent intruders.
DURABLE & RUSTPROOF: GT-SD101 is made from quality zinc alloy, it is sturdy and rustproof.
STYLISH DESIGN: GT-SD101 Thumb turn knob is Möbiusband shape, it embellish your life with a simple elegant.
EASY INSTALLATION: GT-SD101 Installation is quick and easy by following the instructions to fasten two main parts in approciate position of door and jamb.
