can be hung in two ways; at the top is a high quality swivel lobster clasp to make it easy to clip-on to a suitable hanging source (the clasp opens to a maximum of 5mm) but there is also a red nylon cord for placing over larger door handles and so forth. I have used red cord because of the colour's Wiccan association with energy.
Keys are considered symbols of good luck in folklore across the world, but I have specifically used one here because keys also symbolise the opening and closing of powers; in this case and context, the opening of good powers and the closing of bad ones.