New, unused. I am selling this because I no longer have the opportunity to use it. 4 pieces per pack x 7 sets. This is enough for 14 feet. I have used this myself, and it protects the heels from wear and tear just by attaching it to them. Because it has been heat-treated, it has excellent hardness and hardly wears down even after long-term use. I have set a size for the listing, but it is not relevant. This product is free size. Installation nails are also included. I am not able to offer a discount on this item. Although it is unopened, please understand that this is a used item before purchasing.