While some may not see the potential for luck with a horseshoe in this position, others believe it allows the good luck to shower upon you. Regardless, it's sweet and sparkly and wants you to give it a chance.
CHECK THIS OUT... It is adjustable in length. Look at the last photo to see how you can gently pull the chain through in either direction to achieve your desired length.
The necklace is a 17", 14k GF rope chain with a lobster clasp, and the horseshoe is approximately 9mm at its widest point and 13mm in length, including the ring.