Cypher G Series carabiners feature Keylock gates for snag free operation. Twist Lock (TL) and Triple Lock (3AL) gates meet ANSI Z359 strength standards of 16kN for safety. (Note: Screw Gate carabiners are not included in ANSI standards). Yellow zinc plated for corrosion resistance and long life. Modified D shape which provides 22mm (.86 in) of gate clearance with a compact frame.