Size: most popular size for the neck lanyard is 5/8″(1.5CM), 3/4″(2CM), 1″(2.5CM), we also can do if you need other size, such as 1/2″(1.2CM), 1 1/5″(3CM), etc.,
Color: normally it is nickel plated, also can be gold color, black nickel plated color, antique brass color etc.,
This style trigger hook also can be dog leash hook, it also can be thicker and bigger as below photo.